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A113650 Fibonacci(p-J(p,5)) mod p^2, where p is the n-th prime and J is the Jacobi symbol. 6
2, 3, 5, 21, 55, 39, 272, 57, 345, 754, 775, 481, 1599, 1677, 752, 1484, 590, 2928, 469, 3905, 4234, 3871, 1743, 445, 3589, 9797, 2266, 2568, 2834, 6780, 1651, 8384, 7946, 16263, 17880, 9060, 6908, 26080, 7348, 22490, 31146, 23711, 17954, 5983 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A value of 0 indicates a Wall-Sun-Sun prime. No such prime is currently known. - Felix Fröhlich, Jun 07 2014

LINKS

T. D. Noe, Table of n, a(n) for n = 1..10000

Eric Weisstein's World of Mathematics, Wall-Sun-Sun Prime

PROG

(PARI) a(n)=my(p=prime(n)); lift(Mod([1, 1; 1, 0]^(p-kronecker(p, 5)), p^2)[1, 2]) \\ Charles R Greathouse IV, Oct 31 2011

CROSSREFS

Cf. A113649.

Sequence in context: A065398 A084838 A051694 * A259376 A060321 A093522

Adjacent sequences:  A113647 A113648 A113649 * A113651 A113652 A113653

KEYWORD

nonn

AUTHOR

Eric W. Weisstein, Nov 03 2005

STATUS

approved

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Last modified January 26 23:05 EST 2020. Contains 331289 sequences. (Running on oeis4.)