A222724 Palindromic nonprime numbers starting with a digit 1.

1, 111, 121, 141, 161, 171, 1001, 1111, 1221, 1331, 1441, 1551, 1661, 1771, 1881, 1991, 10001, 10101, 10201, 10401, 10701, 10801, 10901, 11011, 11111, 11211, 11511, 11611, 11711, 11811, 11911, 12021, 12121, 12221, 12321, 12521, 12621, 12921, 13031, 13131, 13231

Offset

1,2

Comments

Subsequence of A032350 (palindromic nonprime numbers) and A002113 (palindromic numbers). Complement of A222723 (palindromic primes starting with a digit 1) with respect to A043036 (palindromic numbers starting with a digit 1).

Links

Jaroslav Krizek, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A032350, A002113, A222723, A043036.

Sequence in context: A338111 A351060 A208260 * A343760 A280635 A280732

Adjacent sequences: A222721 A222722 A222723 * A222725 A222726 A222727

Keyword

nonn,base

Author

Jaroslav Krizek, Mar 03 2013

Status

approved