A054165 Number of positive integers <= 2^n of form 3 x^2 + 8 y^2.

0, 0, 1, 2, 4, 7, 12, 23, 41, 73, 136, 253, 471, 888, 1684, 3211, 6155, 11831, 22820, 44137, 85539, 166105, 323119, 629511, 1228111, 2398846, 4690672, 9181509, 17988393, 35272010, 69215936, 135921301, 267089907, 525160968, 1033179029

Offset

0,4

Links

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

Index entries for sequences related to populations of quadratic forms

Crossrefs

Cf. A020680.

Sequence in context: A007323 A099604 A026790 * A054171 A018080 A226160

Adjacent sequences: A054162 A054163 A054164 * A054166 A054167 A054168

Keyword

nonn

Author

David W. Wilson

Status

approved