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#32 by Charles R Greathouse IV at Thu Sep 08 08:45:23 EDT 2022
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(MAGMAMagma) b:=func< n | n le 9 select n else n*Self(n-9) >;
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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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#31 by Harvey P. Dale at Sat Nov 13 16:20:45 EST 2021
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#30 by Harvey P. Dale at Sat Nov 13 16:20:41 EST 2021
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Table[Times@@Range[n, 1, -9], {n, 0, 50}] (* Harvey P. Dale, Nov 13 2021 *)
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| STATUS
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approved
editing
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#29 by Michel Marcus at Tue Nov 10 03:18:43 EST 2020
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#28 by Joerg Arndt at Tue Nov 10 03:01:27 EST 2020
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#27 by Amiram Eldar at Tue Nov 10 02:15:15 EST 2020
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#26 by Amiram Eldar at Tue Nov 10 02:08:29 EST 2020
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#25 by R. J. Mathar at Wed Feb 19 06:29:05 EST 2020
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#24 by R. J. Mathar at Wed Feb 19 06:28:55 EST 2020
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D-finite with recurrence: a(0) = 1, a(n) = n for 1 <= n <= 9, a(n) = n*a(n-9) for n >= 10.
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approved
editing
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#23 by Bruno Berselli at Thu Aug 22 04:43:25 EDT 2019
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