A369345 - cp's OEIS frontend

A369345 a(n) is the constant term in expansion of Product_{k=1..n} (x^(k^3) + 1 + 1/x^(k^3)).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	3
7	3
8	5
9	17
10	31
11	61
12	139
13	309
14	701
15	1651
16	3849
17	8929
18	22295
19	53777
20	131025
21	335619
22	837999
23	2107947
24	5484373
25	14071891
26	36275323
27	95881995
28	250956301
29	659257445
30	1763642977
31	4685724391
32	12496708267
33	33766814039
34	90846586161
35	245197523769

[1, 1, 1, 1, 1, 1, 3, 3, 5, 17, 31, 61, 139, 309, 701, 1651, 3849, 8929, 22295, 53777, 131025, 335619, 837999, 2107947, 5484373, 14071891, 36275323, 95881995, 250956301, 659257445, 1763642977, 4685724391, 12496708267, 33766814039, 90846586161, 245197523769]

cp's OEIS Frontend

A369345 a(n) is the constant term in expansion of Product_{k=1..n} (x^(k^3) + 1 + 1/x^(k^3)).

Table of values

List of values