A054165 - OEIS

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A054165

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

0

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

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OFFSET

0,4

LINKS

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

Index entries for sequences related to populations of quadratic forms

CROSSREFS

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