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A175369
Partial sums of A175368.
2
1, 9, 33, 65, 81, 81, 81, 81, 89, 137, 233, 297, 297, 297, 297, 297, 321, 417, 513, 513, 513, 513, 513, 513, 545, 609, 609, 617, 665, 761, 825, 825, 841, 841, 841, 889, 1081, 1273, 1273, 1273, 1273, 1273, 1273, 1369, 1561, 1561, 1561, 1561, 1561, 1561, 1561
OFFSET
0,2
COMMENTS
Number of integer 4-tuples (x,y,z,u) satisfying |x|^3+|y|^3+|z|^3+|u|^3 <= n, -n <= x,y,z,u <= n. A variant of A046895 with cubes instead of squares.
CROSSREFS
Sequence in context: A256868 A146262 A161430 * A046895 A165392 A145923
KEYWORD
nonn
AUTHOR
R. J. Mathar, Apr 24 2010
STATUS
approved