A175374 a(n) = A175373(n^2).

1, 5, 9, 9, 13, 21, 25, 25, 25, 29, 45, 45, 45, 49, 49, 49, 53, 69, 69, 77, 77, 77, 77, 81, 81, 85, 101, 109, 109, 109, 117, 117, 117, 117, 117, 117, 125, 141, 149, 149, 157, 157, 157, 157, 165, 165, 165, 165, 165, 169, 193, 197, 205, 205, 205, 205, 213, 213, 213, 213

Offset

0,2

Comments

Number of integer pairs (x,y) satisfying x^4+y^4 <= n^2, any -n <= x,y <=n.

Links

Table of n, a(n) for n=0..59.

Crossrefs

Cf. A175364.

Sequence in context: A315121 A127500 A057655 * A141124 A209534 A046255

Adjacent sequences: A175371 A175372 A175373 * A175375 A175376 A175377

Keyword

nonn

Author

R. J. Mathar, Apr 24 2010

Status

approved