A036227 a(1) = 20; a(n+1) = a(n) + sum of decimal digits of a(n).

20, 22, 26, 34, 41, 46, 56, 67, 80, 88, 104, 109, 119, 130, 134, 142, 149, 163, 173, 184, 197, 214, 221, 226, 236, 247, 260, 268, 284, 298, 317, 328, 341, 349, 365, 379, 398, 418, 431, 439, 455, 469, 488, 508, 521, 529, 545, 559, 578, 598, 620, 628, 644, 658

Offset

1,1

Comments

elements >= 109 can be found in A007618.

Links

Table of n, a(n) for n=1..54.

Index entries for Colombian or self numbers and related sequences

Mathematica

NestList[#+Total[IntegerDigits[#]]&, 20, 60] (* Harvey P. Dale, May 11 2014 *)

Crossrefs

Cf. A004207, A016052, A007618, A006507, A016052.

Sequence in context: A094203 A095439 A359076 * A328636 A171953 A133260

Adjacent sequences: A036224 A036225 A036226 * A036228 A036229 A036230

Keyword

easy,nonn,base

Author

Miklos SZABO (mike(AT)ludens.elte.hu)

Extensions

Edited by Charles R Greathouse IV, Aug 02 2010

Status

approved