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A045848 Number of nonnegative solutions of x1^2 + x2^2 +...+ x6^2 = n. 4
1, 6, 15, 20, 21, 36, 61, 60, 45, 72, 120, 120, 95, 120, 186, 200, 141, 150, 270, 300, 216, 252, 375, 360, 271, 306, 450, 500, 390, 396, 626, 660, 405, 420, 735, 780, 582, 600, 825, 920, 720, 606, 960, 1140, 825 (list; graph; refs; listen; history; text; internal format)
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+...)^6.

LINKS

T. D. Noe, Table of n, a(n) for n = 0..10000

CROSSREFS

Sequence in context: A291381 A280719 A282173 * A294651 A044439 A128253

Adjacent sequences:  A045845 A045846 A045847 * A045849 A045850 A045851

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified February 22 08:18 EST 2018. Contains 299447 sequences. (Running on oeis4.)