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A147515 Numbers n with property that (2n)^4+3 is prime. 1
0, 1, 4, 8, 11, 13, 14, 17, 22, 31, 34, 38, 41, 46, 52, 55, 59, 64, 67, 83, 92, 101, 106, 133, 143, 148, 157, 164, 175, 178, 188, 203, 214, 218, 230, 235, 253, 260, 266, 281, 290, 319, 325, 326, 340, 346, 361, 367, 370, 389, 406, 410, 412, 431, 448, 454, 461, 466 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

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

FORMULA

a(n) = A125259(n)/2.

MATHEMATICA

Select[Range[0, 500], PrimeQ[(2#)^4+3]&] (* Harvey P. Dale, Jul 18 2019 *)

PROG

(PARI) isok(n) = isprime((2*n)^4+3); \\ Michel Marcus, Oct 15 2013

CROSSREFS

Cf. A125259.

Sequence in context: A264890 A272299 A282144 * A311020 A311021 A311022

Adjacent sequences:  A147512 A147513 A147514 * A147516 A147517 A147518

KEYWORD

nonn

AUTHOR

Zak Seidov, Nov 05 2008

STATUS

approved

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Last modified August 11 15:10 EDT 2022. Contains 356066 sequences. (Running on oeis4.)