A262223 a(n) = n + largest palindrome contained in decimal representation of n.

0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 11, 22, 14, 16, 18, 20, 22, 24, 26, 28, 22, 23, 44, 26, 28, 30, 32, 34, 36, 38, 33, 34, 35, 66, 38, 40, 42, 44, 46, 48, 44, 45, 46, 47, 88, 50, 52, 54, 56, 58, 55, 56, 57, 58, 59, 110, 62, 64, 66, 68, 66, 67, 68, 69, 70, 71

Offset: 0

Author

Reinhard Zumkeller, Sep 15 2015

Keywords

• nonn
• base

Comments

a(n) = n + A047813(n).

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

Crossrefs

Cf. A047813, A262224 (iteration, start = 1).

Programs

Haskell

a262223 n = n + a047813 n