A368478 - cp's OEIS frontend

A368478 a(n) = [x^n] Product_{k=1..n} (x^(k^4) + 1 + 1/x^(k^4)).

n	a(n)
0	1
1	1
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	3
13	22
14	88
15	236
16	568
17	1147
18	1999
19	3030
20	4333
21	4793
22	5620
23	4628
24	9353
25	40048
26	312436
27	1638550
28	7894061
29	30866741
30	105342660
31	323671449
32	863529149
33	2152428536
34	4750103818
35	9796453345
36	18572505806
37	32181800057
38	55712628236

[1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 22, 88, 236, 568, 1147, 1999, 3030, 4333, 4793, 5620, 4628, 9353, 40048, 312436, 1638550, 7894061, 30866741, 105342660, 323671449, 863529149, 2152428536, 4750103818, 9796453345, 18572505806, 32181800057, 55712628236]

cp's OEIS Frontend

A368478 a(n) = [x^n] Product_{k=1..n} (x^(k^4) + 1 + 1/x^(k^4)).

Table of values

List of values