A163819 - cp's OEIS frontend

A163819 Expansion of (phi(q) * phi(q^10) - phi(q^2) * phi(q^5)) / 2 in powers of q where phi() is a Ramanujan theta function.

n	a(n)
1	1
2	-1
3	0
4	1
5	-1
6	0
7	-2
8	-1
9	1
10	1
11	2
12	0
13	-2
14	2
15	0
16	1
17	0
18	-1
19	2
20	-1
21	0
22	-2
23	-2
24	0
25	1
26	2
27	0
28	-2
29	0
30	0
31	0
32	-1
33	0
34	0
35	2
36	1
37	-2
38	-2
39	0
40	1
41	2
42	0
43	0
44	2
45	-1
46	2
47	-2
48	0
49	3
50	-1
51	0
52	-2
53	-2
54	0
55	-2
56	2
57	0
58	0
59	2
60	0
61	0
62	0
63	-2
64	1
65	2
66	0
67	0
68	0
69	0
70	-2
71	0
72	-1
73	0
74	2
75	0
76	2
77	-4
78	0
79	0
80	-1
81	1
82	-2
83	0
84	0
85	0
86	0
87	0
88	-2
89	2
90	1
91	4
92	-2
93	0
94	2
95	-2
96	0
97	0
98	-3
99	2
100	1
101	0
102	0
103	-2
104	2
105	0

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

cp's OEIS Frontend

A163819 Expansion of (phi(q) * phi(q^10) - phi(q^2) * phi(q^5)) / 2 in powers of q where phi() is a Ramanujan theta function.

Table of values

List of values

n	a(n)
1	1
2	-1
3	0
4	1
5	-1
6	0
7	-2
8	-1
9	1
10	1
11	2
12	0
13	-2
14	2
15	0
16	1
17	0
18	-1
19	2
20	-1
21	0
22	-2
23	-2
24	0
25	1
26	2
27	0
28	-2
29	0
30	0
31	0
32	-1
33	0
34	0
35	2
36	1
37	-2
38	-2
39	0
40	1
41	2
42	0
43	0
44	2
45	-1
46	2
47	-2
48	0
49	3
50	-1
51	0
52	-2
53	-2
54	0
55	-2
56	2
57	0
58	0
59	2
60	0
61	0
62	0
63	-2
64	1
65	2
66	0
67	0
68	0
69	0
70	-2
71	0
72	-1
73	0
74	2
75	0
76	2
77	-4
78	0
79	0
80	-1
81	1
82	-2
83	0
84	0
85	0
86	0
87	0
88	-2
89	2
90	1
91	4
92	-2
93	0
94	2
95	-2
96	0
97	0
98	-3
99	2
100	1
101	0
102	0
103	-2
104	2
105	0

n	a(n)
1	1
2	-1
3	0
4	1
5	-1
6	0
7	-2
8	-1
9	1
10	1
11	2
12	0
13	-2
14	2
15	0
16	1
17	0
18	-1
19	2
20	-1
21	0
22	-2
23	-2
24	0
25	1
26	2
27	0
28	-2
29	0
30	0
31	0
32	-1
33	0
34	0
35	2
36	1
37	-2
38	-2
39	0
40	1
41	2
42	0
43	0
44	2
45	-1
46	2
47	-2
48	0
49	3
50	-1
51	0
52	-2
53	-2
54	0
55	-2
56	2
57	0
58	0
59	2
60	0
61	0
62	0
63	-2
64	1
65	2
66	0
67	0
68	0
69	0
70	-2
71	0
72	-1
73	0
74	2
75	0
76	2
77	-4
78	0
79	0
80	-1
81	1
82	-2
83	0
84	0
85	0
86	0
87	0
88	-2
89	2
90	1
91	4
92	-2
93	0
94	2
95	-2
96	0
97	0
98	-3
99	2
100	1
101	0
102	0
103	-2
104	2
105	0

n	a(n)
1	1
2	-1
3	0
4	1
5	-1
6	0
7	-2
8	-1
9	1
10	1
11	2
12	0
13	-2
14	2
15	0
16	1
17	0
18	-1
19	2
20	-1
21	0
22	-2
23	-2
24	0
25	1
26	2
27	0
28	-2
29	0
30	0
31	0
32	-1
33	0
34	0
35	2
36	1
37	-2
38	-2
39	0
40	1
41	2
42	0
43	0
44	2
45	-1
46	2
47	-2
48	0
49	3
50	-1
51	0
52	-2
53	-2
54	0
55	-2
56	2
57	0
58	0
59	2
60	0
61	0
62	0
63	-2
64	1
65	2
66	0
67	0
68	0
69	0
70	-2
71	0
72	-1
73	0
74	2
75	0
76	2
77	-4
78	0
79	0
80	-1
81	1
82	-2
83	0
84	0
85	0
86	0
87	0
88	-2
89	2
90	1
91	4
92	-2
93	0
94	2
95	-2
96	0
97	0
98	-3
99	2
100	1
101	0
102	0
103	-2
104	2
105	0