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A171686 Numbers n such that (10^n)^4+(10^n+1)^4 is prime. 0
0, 3, 10, 22, 59, 84 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

No more terms up to n=4200.

LINKS

Table of n, a(n) for n=1..6.

Prime Curio, 200..400..600..400..1

PROG

(PARI) is(n)=ispseudoprime((10^n)^4+(10^n+1)^4) \\ Charles R Greathouse IV, Jun 13 2017

CROSSREFS

Sequence in context: A222629 A070880 A321335 * A027164 A292921 A270470

Adjacent sequences: A171683 A171684 A171685 * A171687 A171688 A171689

KEYWORD

more,nonn

AUTHOR

Jason Earls, Dec 15 2009

STATUS

approved

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Last modified November 29 18:13 EST 2022. Contains 358431 sequences. (Running on oeis4.)