A175363 -id:A175363 - cp's OEIS frontend

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

R. J. Mathar, Apr 24 2010

nonn

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.

A175373 Partial sums of A175372.

Original entry on oeis.org

1, 5, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 13, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25

Offset: 0

R. J. Mathar, Apr 24 2010

nonn

Number of integer pairs (x,y) satisfying x^4+y^4 <= n, any -n <= x,y <=n.

			a(6) = 9 counts (x,y) = (-1,-1), (-1,0), (-1,1), (0,-1), (0,0), (0,1), (1,-1), (1,0) and (1,1).

Cf. A057655, A175363.

cp's OEIS Frontend

A175364 A175363(n^2).

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A175373 Partial sums of A175372.

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