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A004159 Sum of digits of n^2. 33
0, 1, 4, 9, 7, 7, 9, 13, 10, 9, 1, 4, 9, 16, 16, 9, 13, 19, 9, 10, 4, 9, 16, 16, 18, 13, 19, 18, 19, 13, 9, 16, 7, 18, 13, 10, 18, 19, 13, 9, 7, 16, 18, 22, 19, 9, 10, 13, 9, 7, 7, 9, 13, 19, 18, 10, 13, 18, 16, 16, 9, 13, 19, 27, 19, 13, 18, 25, 16, 18, 13, 10, 18, 19, 22, 18, 25, 25, 18, 13 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

a(n)=A007953(A000290(n)); a(A058369(n))=A007953(A058369(n)). [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 25 2009]

LINKS

Zak Seidov, Table of n, a(n) for n=0..10000

CROSSREFS

Sequence in context: A021205 A056992 A169908 * A092554 A155787 A179222

Adjacent sequences:  A004156 A004157 A004158 * A004160 A004161 A004162

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.