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A089743 Numbers that are the leading digits of a palindromic prime. 3
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 (list; graph; refs; listen; history; text; internal format)
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 A175415 A304721

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

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Last modified June 20 05:01 EDT 2019. Contains 324229 sequences. (Running on oeis4.)