A303572 - OEIS

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A303572

a(n) = palindrome arising when A228410(n+1) is formed (if there is more than one, use the smallest).

101, 10001, 10101, 121, 212, 1221, 12021, 20102, 10201, 12021, 232, 313, 1331, 13031, 30103, 10301, 13031, 343, 414, 1441, 14041, 40104, 14041, 14241, 2442, 12421, 12321, 2332, 13231, 13431, 3443, 13431, 13531, 535, 515, 1551, 15051, 50105, 15051, 15251, 2552, 12521

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OFFSET

0,1

COMMENTS

Let A228410(n) = X, A228410(n+1) = Y. The digits of X and Y can be rearranged to form a palindrome, possibly in several ways; a(n) is the smallest such palindrome.

Numbers with an even number of digits without a digit 0 are in A113585. - David A. Corneth, Apr 28 2018

LINKS

David A. Corneth, Table of n, a(n) for n = 0..999

CROSSREFS

Cf. A113585, A228410.

Sequence in context: A217677 A333689 A291990 * A152756 A265172 A153500

Adjacent sequences: A303569 A303570 A303571 * A303573 A303574 A303575

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Apr 27 2018

EXTENSIONS

More terms by David A. Corneth, Apr 27 2018

STATUS

approved