A093837 Denominator of N(n)/n^2, where N(n) is the number of lattice points (x,y) with x^2 + y^2 <= n^2.

1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 16, 169, 196, 225, 256, 17, 324, 361, 400, 441, 484, 529, 576, 625, 676, 243, 784, 841, 900, 961, 1024, 1089, 1156, 1225, 432, 1369, 1444, 1521, 64, 1681, 1764, 1849, 1936, 2025, 2116, 2209, 2304, 343, 500

Offset

1,2

Links

Robert Israel, Table of n, a(n) for n = 1..10000

Eric Weisstein's World of Mathematics, Gauss's Circle Problem

Crossrefs

Cf. A093836 (numerators), A093832, A000328.

Sequence in context: A357632 A106545 A169920 * A194148 A162497 A216500

Adjacent sequences: A093834 A093835 A093836 * A093838 A093839 A093840

Keyword

nonn,frac

Author

Eric W. Weisstein, Apr 17 2004

Extensions

Definition edited (based on A093836) by Eric M. Schmidt, May 28 2015

Status

approved