A010072 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A010072

a(n+1) = a(n) + sum of digits in base 9 representation of a(n).

0

1, 2, 4, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 96, 104, 112, 120, 128, 136, 144, 152, 168, 176, 184, 192, 200, 208, 216, 224, 240, 256, 264, 272, 280, 288, 296, 312, 328, 336, 344, 352, 360, 368, 384, 400, 416, 424, 432, 440, 456, 472, 488, 496

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..52.

Index entries for Colombian or self numbers and related sequences

MATHEMATICA

NestList[#+Total[IntegerDigits[#, 9]]&, 1, 60] (* Harvey P. Dale, Apr 18 2011 *)

CROSSREFS

Sequence in context: A261890 A072874 A160158 * A376617 A318654 A375979

Adjacent sequences: A010069 A010070 A010071 * A010073 A010074 A010075

KEYWORD

nonn,base

AUTHOR

Leonid Broukhis

EXTENSIONS

More terms from Neven Juric, Apr 11 2008

STATUS

approved