A228512 Numbers n such that first n digits of A091725 (decimal expansion of second exponential integral at 1, ExpIntegralEi[1]) gives a prime number.

26, 63, 323, 784

Offset: 1

Author

Robert Price, Aug 23 2013

Keywords

• nonn
• more
• base

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.