A010068 a(n+1) = a(n) + sum of digits in base 6 representation of a(n).

1, 2, 4, 8, 11, 17, 24, 28, 36, 37, 39, 43, 46, 52, 59, 68, 76, 82, 89, 98, 106, 117, 124, 133, 141, 152, 159, 168, 176, 187, 194, 203, 216, 217, 219, 223, 226, 232, 239, 248, 256, 262, 269, 278, 286, 297, 304, 313, 321, 332, 339, 348, 356, 367

Offset

0,2

Comments

a(n) mod 5 repeats 1,2,4,3. - Robert Israel, Aug 04 2019

References

S. R. Finch, Mathematical Constants, Cambridge, 2003, Section 2.24.

Links

Robert Israel, Table of n, a(n) for n = 0..10000

Index entries for Colombian or self numbers and related sequences

Maple

f:= n -> n + convert(convert(n, base, 6), `+`):
A[0]:= 1:
for n from 1 to 100 do A[n]:= f(A[n-1]) od:
seq(A[i], i=0..100); # Robert Israel, Aug 04 2019

Crossrefs

Sequence in context: A354884 A279097 A279098 * A295674 A120632 A007295

Adjacent sequences: A010065 A010066 A010067 * A010069 A010070 A010071

Keyword

nonn,base

Author

Leonid Broukhis

Extensions

More terms from Neven Juric, Apr 11 2008

Status

approved