A129438 - cp's OEIS frontend

A129438 Expansion of (phi(q) * phi(q^2) + phi(-q^2) * phi(q^4)) / 2 in powers of q where phi() is a Ramanujan theta function.

n	a(n)
0	1
1	1
2	0
3	2
4	2
5	0
6	0
7	0
8	2
9	3
10	0
11	2
12	4
13	0
14	0
15	0
16	2
17	2
18	0
19	2
20	0
21	0
22	0
23	0
24	4
25	1
26	0
27	4
28	0
29	0
30	0
31	0
32	2
33	4
34	0
35	0
36	6
37	0
38	0
39	0
40	0
41	2
42	0
43	2
44	4
45	0
46	0
47	0
48	4
49	1
50	0
51	4
52	0
53	0
54	0
55	0
56	0
57	4
58	0
59	2
60	0
61	0
62	0
63	0
64	2
65	0
66	0
67	2
68	4
69	0
70	0
71	0
72	6
73	2
74	0
75	2
76	4
77	0
78	0
79	0
80	0
81	5
82	0
83	2
84	0
85	0
86	0

[1, 1, 0, 2, 2, 0, 0, 0, 2, 3, 0, 2, 4, 0, 0, 0, 2, 2, 0, 2, 0, 0, 0, 0, 4, 1, 0, 4, 0, 0, 0, 0, 2, 4, 0, 0, 6, 0, 0, 0, 0, 2, 0, 2, 4, 0, 0, 0, 4, 1, 0, 4, 0, 0, 0, 0, 0, 4, 0, 2, 0, 0, 0, 0, 2, 0, 0, 2, 4, 0, 0, 0, 6, 2, 0, 2, 4, 0, 0, 0, 0, 5, 0, 2, 0, 0, 0]

cp's OEIS Frontend

A129438 Expansion of (phi(q) * phi(q^2) + phi(-q^2) * phi(q^4)) / 2 in powers of q where phi() is a Ramanujan theta function.

Table of values

List of values

n	a(n)
0	1
1	1
2	0
3	2
4	2
5	0
6	0
7	0
8	2
9	3
10	0
11	2
12	4
13	0
14	0
15	0
16	2
17	2
18	0
19	2
20	0
21	0
22	0
23	0
24	4
25	1
26	0
27	4
28	0
29	0
30	0
31	0
32	2
33	4
34	0
35	0
36	6
37	0
38	0
39	0
40	0
41	2
42	0
43	2
44	4
45	0
46	0
47	0
48	4
49	1
50	0
51	4
52	0
53	0
54	0
55	0
56	0
57	4
58	0
59	2
60	0
61	0
62	0
63	0
64	2
65	0
66	0
67	2
68	4
69	0
70	0
71	0
72	6
73	2
74	0
75	2
76	4
77	0
78	0
79	0
80	0
81	5
82	0
83	2
84	0
85	0
86	0

n	a(n)
0	1
1	1
2	0
3	2
4	2
5	0
6	0
7	0
8	2
9	3
10	0
11	2
12	4
13	0
14	0
15	0
16	2
17	2
18	0
19	2
20	0
21	0
22	0
23	0
24	4
25	1
26	0
27	4
28	0
29	0
30	0
31	0
32	2
33	4
34	0
35	0
36	6
37	0
38	0
39	0
40	0
41	2
42	0
43	2
44	4
45	0
46	0
47	0
48	4
49	1
50	0
51	4
52	0
53	0
54	0
55	0
56	0
57	4
58	0
59	2
60	0
61	0
62	0
63	0
64	2
65	0
66	0
67	2
68	4
69	0
70	0
71	0
72	6
73	2
74	0
75	2
76	4
77	0
78	0
79	0
80	0
81	5
82	0
83	2
84	0
85	0
86	0

n	a(n)
0	1
1	1
2	0
3	2
4	2
5	0
6	0
7	0
8	2
9	3
10	0
11	2
12	4
13	0
14	0
15	0
16	2
17	2
18	0
19	2
20	0
21	0
22	0
23	0
24	4
25	1
26	0
27	4
28	0
29	0
30	0
31	0
32	2
33	4
34	0
35	0
36	6
37	0
38	0
39	0
40	0
41	2
42	0
43	2
44	4
45	0
46	0
47	0
48	4
49	1
50	0
51	4
52	0
53	0
54	0
55	0
56	0
57	4
58	0
59	2
60	0
61	0
62	0
63	0
64	2
65	0
66	0
67	2
68	4
69	0
70	0
71	0
72	6
73	2
74	0
75	2
76	4
77	0
78	0
79	0
80	0
81	5
82	0
83	2
84	0
85	0
86	0