The On-Line Encyclopedia of Integer Sequences (OEIS)

A320202 revision #2

A320202

Number of integer solutions to a^2 + 2*b^2 + 4*c^2 + 14*d^2 = n.

1, 2, 2, 4, 4, 4, 8, 8, 6, 6, 8, 4, 8, 12, 2, 12, 16, 16, 18, 20, 24, 24, 36, 20, 24, 22, 24, 40, 16, 20, 24, 32, 26, 40, 32, 24, 60, 36, 40, 36, 40, 40, 48, 28, 8, 52, 12, 48, 56, 34, 34, 48, 72, 28, 80, 40, 34, 60, 44, 60, 24, 60, 64, 76, 44, 36, 80, 60, 96, 88, 48, 56

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..71.

CROSSREFS

Sequence in context: A306166 A317383 A033717 * A320201 A320200 A320199

Adjacent sequences: A320199 A320200 A320201 * A320203 A320204 A320205

KEYWORD

nonn

AUTHOR

Seiichi Manyama, Oct 07 2018

STATUS

editing