A303570 a(n) = palindrome arising when A303501(n+1) is formed (if there is more than one, use the smallest).

11, 101, 121, 22, 202, 121, 121, 313, 33, 303, 131, 414, 44, 404, 141, 515, 55, 505, 151, 616, 66, 606, 161, 717, 77, 707, 171, 818, 88, 808, 181, 919, 9999, 909, 919, 292, 222, 232, 242, 252, 262, 272, 282, 929, 393, 323, 333, 343

Offset

1,1

Comments

Let A303501(n) = X, A303501(n+1) = Y. The digits of X and the first digit of Y can be rearranged to form a palindrome, possibly in several ways; a(n) is the smallest such palindrome.

Links

Jean-Marc Falcoz, Table of n, a(n) for n = 1..6625 (shortened by N. J. A. Sloane, Jan 18 2019)

Crossrefs

Cf. A303501.

Sequence in context: A180421 A176179 A176196 * A208262 A062696 A113654

Adjacent sequences: A303567 A303568 A303569 * A303571 A303572 A303573

Keyword

nonn,base

Author

N. J. A. Sloane, Apr 26 2018

Status

approved