

A138472


Number of numbers less than n having a greater sum of digits.


5



0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, 15, 13, 11, 9, 7, 5, 3, 1, 0, 0, 21, 18, 15, 12, 9, 6, 3, 1, 0, 0, 26, 22, 18, 14, 10, 6, 3, 1, 0, 0, 30, 25, 20, 15, 10, 6, 3, 1, 0, 0, 33, 27, 21, 15, 10, 6, 3, 1, 0, 0, 35, 28, 21, 15, 10, 6, 3, 1, 0, 0, 36, 28, 21, 15, 10, 6, 3, 1, 0
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OFFSET

0,11


COMMENTS

A138470(n) + A138471(n) + a(n) = n;
a(A067043(n)) = 0.


LINKS

R. Zumkeller, Table of n, a(n) for n = 0..1500
Index entries for Colombian or self numbers and related sequences


EXAMPLE

a(42)=#{7,8,9,16,17,18,19,25,26,27,28,29,34,35,36,37,38,39}=18.


MATHEMATICA

nn=90; With[{c=Table[{n, Total[IntegerDigits[n]]}, {n, 0, nn}]}, Table[ Count[Take[c, i], _?(#[[2]]>c[[i, 2]]&)], {i, nn}]] (* Harvey P. Dale, Sep 24 2012 *)


CROSSREFS

Cf. A007953.
Sequence in context: A021846 A201579 A071877 * A022964 A023450 A141726
Adjacent sequences: A138469 A138470 A138471 * A138473 A138474 A138475


KEYWORD

nonn,base,look


AUTHOR

Reinhard Zumkeller, Mar 19 2008


STATUS

approved



