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A228512
Numbers n such that first n digits of A091725 (decimal expansion of second exponential integral at 1, ExpIntegralEi[1]) gives a prime number.
0
26, 63, 323, 784
OFFSET
1,1
COMMENTS
a(5) > 10^4.
LINKS
Eric Weisstein's World of Mathematics, Constant Primes
Eric Weisstein's World of Mathematics, Integer Sequence Primes
CROSSREFS
Cf. A091725.
Sequence in context: A044016 A321023 A064867 * A250605 A020155 A063304
KEYWORD
nonn,more,base
AUTHOR
Robert Price, Aug 23 2013
STATUS
approved