%I #17 Jul 12 2018 02:54:39
%S 1,1,1,2,3,4,5,7,10,13,16,21,28,34,41,52,65,78,93,113,137,162,189,224,
%T 266,308,355,414,480,549,626,717,820,928,1045,1183,1337,1496,1670,
%U 1871,2091,2321,2571,2853,3161,3484,3830,4218,4640,5078,5549,6072,6633,7219
%N Expansion of Product_{k=1..6} (1+x^(2*k-1))/(1-x^(2*k)).
%H Seiichi Manyama, <a href="/A316718/b316718.txt">Table of n, a(n) for n = 0..10000</a>
%o (PARI) N=99; x='x+O('x^N); Vec(prod(k=1, 6, (1+x^(2*k-1))/(1-x^(2*k))))
%Y 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), this sequence (b=6), A316719 (b=7), A316720 (b=8), A316721 (b=9), A316722 (b=10).
%Y Cf. A316675.
%K nonn
%O 0,4
%A _Seiichi Manyama_, Jul 11 2018
|