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#17 by Charles R Greathouse IV at Thu Sep 08 08:45:11 EDT 2022
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Discussion
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| Thu Sep 08
| 08:45
| OEIS Server: https://oeis.org/edit/global/2944
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#16 by Alois P. Heinz at Sat Aug 14 19:30:46 EDT 2021
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#15 by Alois P. Heinz at Sat Aug 14 19:11:31 EDT 2021
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| DATA
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61, 691, 6991, 69991, 699991, 6999991, 69999991, 699999991, 6999999991, 69999999991, 699999999991, 6999999999991, 69999999999991, 699999999999991, 6999999999999991, 69999999999999991, 699999999999999991, 6999999999999999991, 69999999999999999991
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Discussion
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| Sat Aug 14
| 19:13
| Alois P. Heinz: more than simple ... not worth a "conjecture" ...
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| 19:17
| Alois P. Heinz: see also A086940 ... which has the same signature ...
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#14 by Alois P. Heinz at Sat Aug 14 19:10:31 EDT 2021
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| COMMENTS
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Conjecture: satisfies a linear recurrence having signature (11, -10). - Harvey P. Dale, Aug 14 2021
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| LINKS
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<a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (11,-10).
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| KEYWORD
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nonn,easy,changed
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| STATUS
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approved
editing
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#13 by Harvey P. Dale at Sat Aug 14 19:01:17 EDT 2021
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#12 by Harvey P. Dale at Sat Aug 14 19:01:15 EDT 2021
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| COMMENTS
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Conjecture: satisfies a linear recurrence having signature (11, -10). - Harvey P. Dale, Aug 14 2021
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| STATUS
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approved
editing
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#11 by Harvey P. Dale at Sat Aug 14 19:00:22 EDT 2021
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#10 by Harvey P. Dale at Sat Aug 14 19:00:19 EDT 2021
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| MATHEMATICA
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Table[10 FromDigits[PadRight[{6}, n, 9]]+1, {n, 20}] (* Harvey P. Dale, Aug 14 2021 *)
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| STATUS
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approved
editing
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#9 by Jon E. Schoenfield at Thu Nov 08 22:16:26 EST 2018
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#8 by Jon E. Schoenfield at Thu Nov 08 22:16:23 EST 2018
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| NAME
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a(n) = 7*10^n- - 9.
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| COMMENTS
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a(n) = k where R(k+9)=) = 7.
R(a(n))=)) = A086940(n).
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| PROG
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(MAGMA) [7*10^n-9: n in [1..25] ]; // ] ]; // _Vincenzo Librandi, _, Aug 22 2011
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| STATUS
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approved
editing
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