

A079050


Sum of the digits of LookAndSay(n).


0



2, 3, 4, 5, 6, 7, 8, 9, 10, 3, 3, 5, 6, 7, 8, 9, 10, 11, 12, 4, 5, 4, 7, 8, 9, 10, 11, 12, 13, 5, 6, 7, 5, 9, 10, 11, 12, 13, 14, 6, 7, 8, 9, 6, 11, 12, 13, 14, 15, 7, 8, 9, 10, 11, 7, 13, 14, 15, 16, 8, 9, 10, 11, 12, 13, 8, 15, 16, 17, 9, 10, 11, 12, 13, 14, 15, 9, 17, 18, 10, 11, 12, 13
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..83.


EXAMPLE

LookAndSay(23) = 1213, the sum of whose digits = 7, so a(23) = 7.


MATHEMATICA

lookandsay[n_] := Module[{r, d, f, i, l, k}, r = ""; d = IntegerDigits[n]; While[d != {}, f = First[d]; i = 2; l = Length[d]; While[i <= l && d[[i]] == f, i = i + 1]; k = i  1; r = r <> ToString[k]; r = r <> ToString[f]; d = Drop[d, k]]; ToExpression[r]]; t = Table[Apply[Plus, IntegerDigits[lookandsay[i]]], {i, 1, 100}]


CROSSREFS

Sequence in context: A043270 A089898 A071785 * A278062 A254597 A064698
Adjacent sequences: A079047 A079048 A079049 * A079051 A079052 A079053


KEYWORD

base,nonn


AUTHOR

Joseph L. Pe, Feb 02 2003


STATUS

approved



