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A138471 Number of numbers less than n having the same sum of digits. 5
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 2, 1, 0, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, 4, 4, 4, 4, 4, 4, 3, 2, 1, 0, 5, 5, 5, 5, 5, 4, 3, 2, 1, 0, 6, 6, 6, 6, 5, 4, 3, 2, 1, 0, 7, 7, 7, 6, 5, 4, 3, 2, 1, 0, 8, 8, 7, 6, 5, 4, 3, 2, 1, 0, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 2, 3, 4, 5, 6 (list; graph; refs; listen; history; internal format)
OFFSET

0,21

COMMENTS

A138470(n) + a(n) + A138472(n) = n;

a(A051885(n)) = 0.

LINKS

R. Zumkeller, Table of n, a(n) for n = 0..1500

EXAMPLE

a(42)=#{6,15,24,33}=4.

CROSSREFS

Cf. A007953.

Sequence in context: A117005 A194322 A052010 * A102669 A055098 A055178

Adjacent sequences:  A138468 A138469 A138470 * A138472 A138473 A138474

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 19 2008

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Last modified February 15 06:52 EST 2012. Contains 205694 sequences.