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A090756 Numbers n of form 5k+1 such that binomial(n-1,(n-1)/5) == 1 (mod n). 0
11, 31, 41, 51, 61, 71, 101, 131, 141, 151, 181, 191, 211, 241, 251, 271, 281, 311, 321, 331, 401, 411, 421, 431, 461, 491, 521, 541, 571, 601, 631, 641, 661, 691, 701, 751, 761, 811, 821, 881, 911, 941, 951, 971, 991, 1021, 1031, 1051, 1061, 1091, 1151, 1171 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Contains primes of form 5k+1 and some composite of form 5k+1 such that (5k+1)/3 is prime.

LINKS

Table of n, a(n) for n=0..51.

CROSSREFS

Sequence in context: A173972 A167488 A298566 * A038351 A068871 A004615

Adjacent sequences:  A090753 A090754 A090755 * A090757 A090758 A090759

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Feb 07 2004

STATUS

approved

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Last modified January 28 06:59 EST 2021. Contains 340490 sequences. (Running on oeis4.)