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A171249 Numbers n such that 10^n*(2+3*10^n)+3 is prime. 0
2, 3, 4, 6, 7, 25, 38, 152, 312, 824, 1195, 1211, 1335, 2228, 3435, 3787 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

No more terms up to n=3800.

LINKS

Table of n, a(n) for n=1..16.

PROG

(PARI) is(n)=ispseudoprime(10^n*(2+3*10^n)+3) \\ Charles R Greathouse IV, Jun 13 2017

CROSSREFS

Sequence in context: A130776 A077292 A270475 * A036413 A069912 A152306

Adjacent sequences:  A171246 A171247 A171248 * A171250 A171251 A171252

KEYWORD

more,nonn

AUTHOR

Jason Earls, Dec 06 2009

STATUS

approved

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Last modified September 28 17:43 EDT 2020. Contains 337393 sequences. (Running on oeis4.)