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A134921 a(n) = A132398(n)/6. 1
1, 4, 5, 9, 11, 14, 15, 16, 21, 24, 25, 31, 35, 39, 41, 46, 50, 54, 55, 60, 70, 71, 74, 75, 79, 80, 81, 86, 101, 104, 106, 114, 120, 125, 131, 134, 136, 144, 146, 150, 151, 154, 161, 166, 169, 170, 176, 179, 184, 185, 186, 199, 201, 224, 234, 235, 236, 240, 244, 249 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Zak Seidov, Table of n, a(n) for n = 1..1000.

FORMULA

a(n) = A132398(n)/6.

PROG

(PARI) isok(n) = isprime(396*n^2 + 1); \\ Michel Marcus, Oct 13 2013

CROSSREFS

Cf. A132398.

Sequence in context: A110603 A224862 A010416 * A117870 A162698 A166562

Adjacent sequences:  A134918 A134919 A134920 * A134922 A134923 A134924

KEYWORD

nonn

AUTHOR

Zak Seidov, Nov 15 2007

STATUS

approved

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Last modified July 26 09:58 EDT 2021. Contains 346294 sequences. (Running on oeis4.)