A308245 - cp's OEIS frontend

A308245 G.f.: x * Product_{k>=1} 1/(1 - a(k)*(-x)^k)^((-1)^k).

n	a(n)
1	1
2	1
3	1
4	2
5	4
6	8
7	16
8	34
9	76
10	168
11	368
12	838
13	1964
14	4544
15	10464
16	24658
17	58984
18	140072
19	331456
20	795834
21	1932228
22	4665304
23	11227280
24	27305882
25	66953236
26	163418448
27	397826496
28	976658846
29	2412163316
30	5935476672
31	14576596320
32	36023097266
33	89458468968

[1, 1, 1, 2, 4, 8, 16, 34, 76, 168, 368, 838, 1964, 4544, 10464, 24658, 58984, 140072, 331456, 795834, 1932228, 4665304, 11227280, 27305882, 66953236, 163418448, 397826496, 976658846, 2412163316, 5935476672, 14576596320, 36023097266, 89458468968]

cp's OEIS Frontend

A308245 G.f.: x * Product_{k>=1} 1/(1 - a(k)*(-x)^k)^((-1)^k).

Table of values

List of values