A089743 Numbers that are the leading digits of a palindromic prime.

1, 2, 3, 5, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118

Offset

1,2

Comments

Conjecture: every number beginning with 1, 3, 7 or 9 begins infinitely many palindromic primes.

Links

Table of n, a(n) for n=1..65.

Crossrefs

Cf. A082768, A089744.

Sequence in context: A193889 A177922 A102246 * A080587 A342190 A175415

Adjacent sequences: A089740 A089741 A089742 * A089744 A089745 A089746

Keyword

base,easy,nonn

Author

Amarnath Murthy, Nov 19 2003

Extensions

Edited and extended by David Wasserman, Jul 28 2005

Status

approved