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A118421
Number of integer solutions to n = x^2 + (2y)^2 + z(z+1)/2.
3
6, 4, 2, 12, 16, 10, 12, 16, 12, 14, 20, 4, 8, 24, 14, 20, 16, 16, 28, 32, 18, 12, 40, 4, 20, 44, 8, 22, 20, 28, 20, 32, 16, 8, 44, 18, 32, 24, 16, 44, 56, 24, 24, 32, 22, 48, 24, 24, 20, 36, 24, 36, 60, 12, 46, 36, 16, 32, 20, 24, 44, 40, 16, 32, 56, 26, 36, 72, 24, 32, 56, 24
OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Square-Triangle Theorem
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Apr 27 2006
STATUS
approved