A152232 Similar to A072921 but starting with 3.

3, 6, 15, 30, 48, 78, 123, 174, 237, 312, 393, 489, 606, 735, 879, 1047, 1227, 1419, 1626, 1848, 2091, 2346, 2616, 2901, 3198, 3516, 3849, 4206, 4575, 4965, 5379, 5817, 6276, 6756, 7260, 7779, 8328, 8898, 9501, 10119, 10749, 11400, 12057, 12729, 13422

Offset

1,1

Links

Alois P. Heinz, Table of n, a(n) for n = 1..1000

Maple

b:= proc(n) option remember; local m; m:= a(n); `if`(n=1, 0, b(n-1)); while m>0 do %+ irem(m, 10, 'm') od; % end: a:= proc(n) option remember; `if`(n=1, 3, a(n-1) +b(n-1)) end: seq(a(n), n=1..50); # Alois P. Heinz, Oct 07 2009

Crossrefs

Sequence in context: A092641 A077449 A356666 * A357007 A183038 A141023

Adjacent sequences: A152229 A152230 A152231 * A152233 A152234 A152235

Keyword

nonn,base,easy

Author

N. J. A. Sloane, Oct 07 2009

Status

approved