A010069 a(n+1) = a(n) + sum of digits in base 7 representation of a(n).

1, 2, 4, 8, 10, 14, 16, 20, 28, 32, 40, 50, 52, 56, 58, 62, 70, 74, 82, 92, 100, 104, 112, 116, 124, 134, 142, 152, 160, 170, 178, 188, 202, 212, 220, 230, 244, 260, 268, 278, 292, 308, 316, 326, 340, 356, 364, 368, 376, 386, 394, 398, 406, 410

Offset

0,2

Links

Harvey P. Dale, Table of n, a(n) for n = 0..1000

Index entries for Colombian or self numbers and related sequences

Mathematica

NestList[#+Total[IntegerDigits[#, 7]]&, 1, 60] (* Harvey P. Dale, Jul 27 2021 *)

Crossrefs

Sequence in context: A086801 A154115 A071703 * A360912 A226872 A132895

Adjacent sequences: A010066 A010067 A010068 * A010070 A010071 A010072

Keyword

nonn,base

Author

Leonid Broukhis

Extensions

More terms from Neven Juric, Apr 11 2008

Status

approved