A054184 Number of positive integers <= 2^n of form 6 x^2 + 9 y^2.

0, 0, 0, 1, 3, 4, 10, 15, 30, 51, 97, 177, 334, 621, 1182, 2243, 4278, 8203, 15779, 30446, 58882, 114125, 221636, 431155, 840041, 1638853, 3201255, 6259884, 12253156, 24006205, 47072013, 92370614, 181390365, 356434492, 700827326

Offset

0,5

Links

Table of n, a(n) for n=0..34.

Index entries for sequences related to populations of quadratic forms

Crossrefs

Sequence in context: A218277 A103080 A055720 * A307057 A188022 A007007

Adjacent sequences: A054181 A054182 A054183 * A054185 A054186 A054187

Keyword

nonn

Author

David W. Wilson

Status

approved