A088781 A068164 indexed by A000040.

5, 1, 2, 13, 3, 18, 4, 23, 8, 26, 5, 31, 6, 35, 36, 38, 7, 42, 8, 197, 47, 48, 9, 53, 54, 56, 31, 60, 10, 63, 11, 216, 51, 69, 71, 73, 12, 76, 34, 79, 13, 82, 14, 86, 88, 89, 15, 93, 35, 96, 36, 98, 16, 100, 102, 103, 37, 107, 17, 110, 18, 257, 38, 116, 119, 121, 19, 124, 57, 126

Offset: 1

Author

Ray Chandler, Oct 27 2003

Keywords

• base
• easy
• nonn

Links

• Robert Price, Table of n, a(n) for n = 1..10000
• Index entries for primes involving decimal expansion of n

Crossrefs

Cf. A068164, A000040.

Formula

a(n)=k such that A068164(n)=A000040(k).