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A152232
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Similar to A072921 but starting with 3.
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1
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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
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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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); [From Alois P. Heinz (heinz(AT)hs-heilbronn.de), Oct 07 2009]
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CROSSREFS
| Sequence in context: A000220 A092641 A077449 * A183038 A141023 A126982
Adjacent sequences: A152229 A152230 A152231 * A152233 A152234 A152235
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KEYWORD
| nonn,base,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Oct 07 2009
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