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A321435 Expansion of Product_{1 <= i <= j} (1 + x^(i^2 + j^2)). 4
1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 2, 0, 1, 2, 0, 3, 0, 2, 3, 1, 4, 1, 2, 4, 1, 6, 3, 4, 6, 2, 7, 5, 6, 8, 5, 9, 7, 9, 10, 9, 12, 10, 13, 14, 13, 18, 13, 19, 17, 18, 25, 19, 28, 24, 25, 33, 26, 36, 35, 33, 46, 35, 47, 48, 44, 61, 48, 62, 65, 60, 78, 68, 79, 87, 79, 101, 93 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,11

LINKS

Table of n, a(n) for n=0..76.

FORMULA

G.f.: Product_{k>0} (1 + x^k)^A025426(k).

CROSSREFS

Cf. A025426, A321423, A321428, A321436, A321437.

Sequence in context: A113408 A242653 A191530 * A173863 A022337 A025687

Adjacent sequences: A321432 A321433 A321434 * A321436 A321437 A321438

KEYWORD

nonn

AUTHOR

Seiichi Manyama, Nov 09 2018

STATUS

approved

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Last modified February 1 20:55 EST 2023. Contains 359996 sequences. (Running on oeis4.)