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A006314

Numbers k such that k^8 + 1 is prime.

1, 2, 4, 118, 132, 140, 152, 208, 240, 242, 288, 290, 306, 378, 392, 426, 434, 442, 508, 510, 540, 542, 562, 596, 610, 664, 680, 682, 732, 782, 800, 808, 866, 876, 884, 892, 916, 918, 934, 956, 990, 1022, 1028, 1054, 1106, 1120, 1174, 1224, 1232, 1256, 1284

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

REFERENCES

Dubner, Harvey. "Generalized Fermat primes." J. Recreational Math., 18 (1985): 279-280.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

T. D. Noe, Table of n, a(n) for n=1..10000

FORMULA

A258805(n) = a(n)^8+1. - R. J. Mathar, Jun 05 2025

MATHEMATICA

Select[Range[1300], PrimeQ[#^8+1]&] (* Harvey P. Dale, Mar 31 2011 *)