A303490 - cp's OEIS frontend

A303490 Expansion of Product_{k>=1} ((1 - 4^kx^k)/(1 + 4^kx^k))^(1/4^k).

n	a(n)
0	1
1	-2
2	0
3	-10
4	22
5	-102
6	84
7	-950
8	3360
9	-18006
10	21968
11	-162126
12	613830
13	-2772010
14	3847740
15	-38669210
16	145735622
17	-567469350
18	901506480
19	-6688787966
20	27166965906
21	-137118406226
22	234942672620
23	-1425038557410
24	6527750118052
25	-27227710098826

[1, -2, 0, -10, 22, -102, 84, -950, 3360, -18006, 21968, -162126, 613830, -2772010, 3847740, -38669210, 145735622, -567469350, 901506480, -6688787966, 27166965906, -137118406226, 234942672620, -1425038557410, 6527750118052, -27227710098826]

cp's OEIS Frontend

A303490 Expansion of Product_{k>=1} ((1 - 4^kx^k)/(1 + 4^kx^k))^(1/4^k).

Table of values

List of values

cp's OEIS Frontend

A303490 Expansion of Product_{k>=1} ((1 - 4^k*x^k)/(1 + 4^k*x^k))^(1/4^k).

Table of values

List of values

A303490 Expansion of Product_{k>=1} ((1 - 4^kx^k)/(1 + 4^kx^k))^(1/4^k).