A303307 - cp's OEIS frontend

A303307 Expansion of Product_{n>=1} ((1 + (2x)^n)/(1 - (2x)^n))^(1/2).

n	a(n)
0	1
1	2
2	6
3	20
4	54
5	156
6	444
7	1192
8	3174
9	8620
10	22516
11	58392
12	151996
13	387352
14	984888
15	2507088
16	6270854
17	15659724
18	39067588
19	96454072
20	237663444
21	584266696
22	1425921992
23	3470869296
24	8431325916
25	20380759544
26	49122457608
27	118178637040
28	283150466232
29	676768288176

[1, 2, 6, 20, 54, 156, 444, 1192, 3174, 8620, 22516, 58392, 151996, 387352, 984888, 2507088, 6270854, 15659724, 39067588, 96454072, 237663444, 584266696, 1425921992, 3470869296, 8431325916, 20380759544, 49122457608, 118178637040, 283150466232, 676768288176]

cp's OEIS Frontend

A303307 Expansion of Product_{n>=1} ((1 + (2x)^n)/(1 - (2x)^n))^(1/2).

Table of values

List of values

cp's OEIS Frontend

A303307 Expansion of Product_{n>=1} ((1 + (2*x)^n)/(1 - (2*x)^n))^(1/2).

Table of values

List of values

A303307 Expansion of Product_{n>=1} ((1 + (2x)^n)/(1 - (2x)^n))^(1/2).