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Revision History for A226747

(Underlined text is an addition; strikethrough text is a deletion.)

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A226747 Difference between the smallest 10^n-digit Sophie Germain prime and 10^(10^n - 1).
(history; published version)
#5 by Charles R Greathouse IV at Mon Apr 03 10:36:13 EDT 2023
LINKS

G. L. Honaker, Jr. and Chris Caldwell, <a href="httphttps://primes.utmt5k.eduorg/curios/cpage/7079.html">10000...44239 (100-digits)</a>

Discussion
Mon Apr 03 10:36
OEIS Server: https://oeis.org/edit/global/2966
#4 by T. D. Noe at Mon Jun 17 13:22:35 EDT 2013
STATUS

proposed

approved

#3 by Arkadiusz Wesolowski at Sun Jun 16 12:37:53 EDT 2013
STATUS

editing

proposed

#2 by Arkadiusz Wesolowski at Sun Jun 16 12:33:08 EDT 2013
NAME

allocatedDifference between the smallest 10^n-digit Sophie Germain forprime Arkadiuszand Wesolowski10^(10^n - 1).

DATA

1, 289, 44239, 2222239, 114862711

OFFSET

0,2

LINKS

G. L. Honaker, Jr. and Chris Caldwell, <a href="http://primes.utm.edu/curios/cpage/7079.html">10000...44239 (100-digits)</a>

Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/SophieGermainPrime.html">Sophie Germain Prime</a>

MATHEMATICA

lst = {}; Do[s = 10^(10^n - 1); n = NextPrime[s]; While[! PrimeQ[2*n + 1], n = NextPrime[n]]; AppendTo[lst, n - s], {n, 0, 2}]; lst

CROSSREFS

Cf. A005384.

KEYWORD

allocated

base,hard,more,nonn

AUTHOR

Arkadiusz Wesolowski, Jun 16 2013

STATUS

approved

editing

#1 by Arkadiusz Wesolowski at Sun Jun 16 12:33:08 EDT 2013
NAME

allocated for Arkadiusz Wesolowski

KEYWORD

allocated

STATUS

approved

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Last modified September 11 17:54 EDT 2024. Contains 375839 sequences. (Running on oeis4.)