A054178 - OEIS

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A054178

Number of positive integers <= 2^n of form 5 x^2 + 8 y^2.

0

0, 0, 0, 2, 3, 6, 10, 19, 35, 63, 115, 215, 400, 759, 1430, 2735, 5236, 10058, 19392, 37503, 72686, 141120, 274439, 534633, 1042879, 2036824, 3982508, 7794887, 15270563, 29941088, 58751556, 115367299, 226690692, 445709729, 876839450

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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: A374631 A123916 A000693 * A005833 A247162 A001678

Adjacent sequences: A054175 A054176 A054177 * A054179 A054180 A054181

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved