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A157438 Primes p such that p^2 divides A085606((p-1)/2) = ((p-1)/2-1)^((p-1)/2) - 1. 1
5, 127, 607 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Primes p such that (-3/2)^((p-1)/2) == 1 - p/6 (mod p^2).[Max Alekseyev, Dec 05 2010]

Primes p that divide A085606((p-1)/2) are listed in A157437.

No other terms below 10^11. [From Max Alekseyev (maxale(AT)gmail.com), Dec 05 2010.]

CROSSREFS

Cf. A085606, A157437.

Sequence in context: A015476 A059486 A071196 * A142803 A094074 A012218

Adjacent sequences:  A157435 A157436 A157437 * A157439 A157440 A157441

KEYWORD

hard,more,nonn,bref

AUTHOR

Alexander Adamchuk (alex(AT)kolmogorov.com), Mar 01 2009

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Last modified February 17 04:58 EST 2012. Contains 205985 sequences.