

A112881


Indices of prime Perrin numbers; values of n such that A001608(n) is prime.


0



2, 3, 4, 5, 6, 7, 10, 12, 20, 21, 24, 34, 38, 75, 122, 166, 236, 355, 356, 930, 1042, 1214, 1461, 1622, 4430, 5802, 9092, 16260, 18926, 23698, 40059, 45003, 73807, 91405, 263226, 316872, 321874, 324098, 581132
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..39.
Eric Weisstein's World of Mathematics, Perrin Sequence
Eric Weisstein's World of Mathematics, Integer Sequence Primes


CROSSREFS

Cf. A001608, A074788.
Sequence in context: A018444 A032378 A164947 * A008814 A005140 A176486
Adjacent sequences: A112878 A112879 A112880 * A112882 A112883 A112884


KEYWORD

nonn,more


AUTHOR

Eric W. Weisstein, Oct 05 2005


EXTENSIONS

a(34) from Eric W. Weisstein, Oct 06 2005
a(35) = 263226 from Eric W. Weisstein, May 04 2006
a(36) = 316872 from Eric W. Weisstein, Feb 04 2007
a(37) = 321874 from Eric W. Weisstein, Feb 19 2007
a(38) = 324098 from Eric W. Weisstein, Feb 25 2007
a(39) = 581132 from Eric W. Weisstein, Feb 15 2011


STATUS

approved



