A175364 A175363(n^2).

1, 5, 9, 21, 25, 25, 45, 45, 53, 69, 77, 77, 101, 109, 117, 137, 149, 157, 157, 185, 193, 205, 213, 233, 257, 257, 265, 281, 305, 313, 329, 337, 361, 385, 393, 401, 409, 445, 453, 473, 481, 489, 525, 541, 549, 561, 577, 597, 621, 637, 653, 661, 665, 717, 725

Offset

0,2

Comments

Number of integer pairs (x,y) satisfying |x|^3+|y|^3 <= n^2, any -n <= x,y <=n. A variant of A000328 where the norm is substituted by sums-of-cubes of Cartesian coordinates in the square lattice.

Links

Table of n, a(n) for n=0..54.

Crossrefs

Sequence in context: A273388 A273449 A297362 * A244642 A211424 A211428

Adjacent sequences: A175361 A175362 A175363 * A175365 A175366 A175367

Keyword

nonn

Author

R. J. Mathar, Apr 24 2010

Status

approved