A368348 - cp's OEIS frontend

A368348 a(n) = [x^(n^4)] Product_{k=1..n} (x^(k^4) + 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	0
13	0
14	0
15	0
16	1
17	3
18	0
19	0
20	19
21	26
22	0
23	0
24	40
25	129
26	0
27	0
28	616
29	785
30	0
31	0
32	4080
33	9309
34	0
35	0
36	44775
37	72659
38	0
39	0
40	430297
41	781505
42	0
43	0
44	3934457
45	7765047
46	0
47	0
48	44740433
49	78818429
50	0
51	0
52	463089552
53	900950811
54	0
55	0
56	5344766190
57	9806206864
58	0
59	0

[1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 0, 0, 19, 26, 0, 0, 40, 129, 0, 0, 616, 785, 0, 0, 4080, 9309, 0, 0, 44775, 72659, 0, 0, 430297, 781505, 0, 0, 3934457, 7765047, 0, 0, 44740433, 78818429, 0, 0, 463089552, 900950811, 0, 0, 5344766190, 9806206864, 0, 0]

cp's OEIS Frontend

A368348 a(n) = [x^(n^4)] Product_{k=1..n} (x^(k^4) + 1/x^(k^4)).

Table of values

List of values