A316722 Expansion of Product_{k=1..10} (1+x^(2*k-1))/(1-x^(2*k)).

1, 1, 1, 2, 3, 4, 5, 7, 10, 13, 16, 21, 28, 35, 43, 55, 70, 86, 105, 130, 161, 195, 234, 284, 345, 412, 489, 585, 698, 824, 969, 1143, 1347, 1575, 1834, 2141, 2496, 2891, 3339, 3862, 4460, 5125, 5876, 6740, 7720, 8810, 10031, 11423, 12993, 14730, 16669, 18862, 21315

Offset

0,4

Links

Seiichi Manyama, Table of n, a(n) for n = 0..10000

Prog

(PARI) N=99; x='x+O('x^N); Vec(prod(k=1, 10, (1+x^(2*k-1))/(1-x^(2*k))))

Crossrefs

Product_{k=1..b} (1+x^(2*k-1))/(1-x^(2*k)): A000012 (b=1), A004525(n+1) (b=2), A000933(n+5) (b=3), A089597 (b=4), A014670 (b=5), A316718 (b=6), A316719 (b=7), A316720 (b=8), A316721 (b=9), this sequence (b=10).

Cf. A316675.

Sequence in context: A316719 A316720 A316721 * A106507 A006950 A052335

Adjacent sequences: A316719 A316720 A316721 * A316723 A316724 A316725

Keyword

nonn

Author

Seiichi Manyama, Jul 11 2018

Status

approved