A320654 - cp's OEIS frontend

A320654 Expansion of 1/(2 - Product_{k>=1} (1 + x^k)/(1 - x^k)).

n	a(n)
0	1
1	2
2	8
3	32
4	126
5	496
6	1952
7	7680
8	30216
9	118882
10	467728
11	1840224
12	7240160
13	28485616
14	112073536
15	440941056
16	1734834302
17	6825515600
18	26854243752
19	105655081568
20	415688349456
21	1635480294080
22	6434618135968
23	25316300481024
24	99604212169632
25	391881866363890
26	1541816293103184

[1, 2, 8, 32, 126, 496, 1952, 7680, 30216, 118882, 467728, 1840224, 7240160, 28485616, 112073536, 440941056, 1734834302, 6825515600, 26854243752, 105655081568, 415688349456, 1635480294080, 6434618135968, 25316300481024, 99604212169632, 391881866363890, 1541816293103184]

cp's OEIS Frontend

A320654 Expansion of 1/(2 - Product_{k>=1} (1 + x^k)/(1 - x^k)).

Table of values

List of values