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Search: id:A045851
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A045851 Number of nonnegative solutions of x1^2 + x2^2 +...+ x9^2 = n. +0
1
1, 9, 36, 84, 135, 198, 336, 540, 675, 766, 1080, 1584, 1857, 1962, 2520, 3480, 3987, 3987, 4656, 6300, 7326, 7182, 8064, 10656, 12063, 11583, 12672, 16116, 18180, 17784, 19104, 23940, 27027, 25554 (list; graph; listen)
OFFSET

0,2

REFERENCES

Coefficient of q^n in (1+q+q^4+q^9+q^16+q^25+q^36+q^49+q^64+...)^9.

LINKS

T. D. Noe, Table of n, a(n) for n=0..2000

CROSSREFS

Sequence in context: A083014 A001487 A009522 this_sequence A128642 A022604 A085630

Adjacent sequences: A045848 A045849 A045850 this_sequence A045852 A045853 A045854

KEYWORD

nonn

AUTHOR

njas

page 1

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Last modified July 19 08:04 EDT 2008. Contains 142098 sequences.


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