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 A185705 Characteristic function of positive numbers that are primes ending in 1. 6
 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1 LINKS Antti Karttunen, Table of n, a(n) for n = 1..65537 PROG (PARI) A185705(n) = ((1==(n%10))&&isprime(n)); \\ Antti Karttunen, Sep 21 2018 CROSSREFS Cf. A030430 (primes of the form 10*n+1). Primes ending in 1,3,7,9: A185705, A185706, A185708, A185709. Sequence in context: A037808 A023973 A297040 * A044941 A277151 A277155 Adjacent sequences:  A185702 A185703 A185704 * A185706 A185707 A185708 KEYWORD nonn,base AUTHOR N. J. A. Sloane, Feb 10 2011 STATUS approved

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Last modified October 23 17:19 EDT 2019. Contains 328373 sequences. (Running on oeis4.)