A285290 - cp's OEIS frontend

A285290 Expansion of Product_{k>=1} ((1 + x^k) / (1 + x^(4*k)))^k.

n	a(n)
0	1
1	1
2	2
3	5
4	7
5	15
6	26
7	44
8	74
9	125
10	205
11	331
12	534
13	844
14	1332
15	2077
16	3215
17	4934
18	7533
19	11410
20	17191
21	25751
22	38346
23	56833
24	83814
25	123025
26	179776
27	261639
28	379186
29	547476
30	787516
31	1128775
32	1612395
33	2295701
34	3258177
35	4610130
36	6503873
37	9149365
38	12835612
39	17959085

[1, 1, 2, 5, 7, 15, 26, 44, 74, 125, 205, 331, 534, 844, 1332, 2077, 3215, 4934, 7533, 11410, 17191, 25751, 38346, 56833, 83814, 123025, 179776, 261639, 379186, 547476, 787516, 1128775, 1612395, 2295701, 3258177, 4610130, 6503873, 9149365, 12835612, 17959085]

cp's OEIS Frontend

A285290 Expansion of Product_{k>=1} ((1 + x^k) / (1 + x^(4*k)))^k.

Table of values

List of values