A257920 - cp's OEIS frontend

A257920 Expansion of phi(x) * psi(x^3) in powers of x where phi(), psi() are Ramanujan theta functions.

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

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

cp's OEIS Frontend

A257920 Expansion of phi(x) * psi(x^3) in powers of x where phi(), psi() are Ramanujan theta functions.

Table of values

List of values

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

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

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