A055950 a(n) = n + reversal of base 5 digits of n (written in base 10).

0, 2, 4, 6, 8, 6, 12, 18, 24, 30, 12, 18, 24, 30, 36, 18, 24, 30, 36, 42, 24, 30, 36, 42, 48, 26, 52, 78, 104, 130, 36, 62, 88, 114, 140, 46, 72, 98, 124, 150, 56, 82, 108, 134, 160, 66, 92, 118, 144, 170, 52, 78, 104, 130, 156, 62, 88, 114, 140, 166, 72, 98, 124, 150

Offset: 0

Author

Henry Bottomley, Jul 18 2000

Keywords

• base
• nonn
• look

Comments

If n has an even number of digits in base 5 then a(n) is a multiple of 6.

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..10000

Crossrefs

Cf. A030104, A056964.

Programs

Mathematica

Table[n + IntegerReverse[n, 5], {n, 0, 100}] (* Paolo Xausa, Aug 07 2024 *)

Formula

a(n) = n + A030104(n).