A260221 - cp's OEIS frontend

A260221 Expansion of phi(x^3)^2 / f(x) in powers of x where phi(), f() are Ramanujan theta functions.

n	a(n)
0	1
1	-1
2	2
3	1
4	1
5	1
6	3
7	1
8	2
9	2
10	2
11	4
12	5
13	3
14	7
15	8
16	7
17	7
18	9
19	10
20	11
21	12
22	14
23	17
24	19
25	18
26	24
27	26
28	26
29	31
30	36
31	38
32	41
33	45
34	50
35	57
36	61
37	63
38	75
39	83
40	86
41	93
42	106
43	115
44	123
45	134
46	146
47	162
48	173
49	183
50	206
51	225
52	237
53	257
54	283
55	304
56	327
57	350
58	380
59	416
60	443
61	471
62	516
63	557

[1, -1, 2, 1, 1, 1, 3, 1, 2, 2, 2, 4, 5, 3, 7, 8, 7, 7, 9, 10, 11, 12, 14, 17, 19, 18, 24, 26, 26, 31, 36, 38, 41, 45, 50, 57, 61, 63, 75, 83, 86, 93, 106, 115, 123, 134, 146, 162, 173, 183, 206, 225, 237, 257, 283, 304, 327, 350, 380, 416, 443, 471, 516, 557]

cp's OEIS Frontend

A260221 Expansion of phi(x^3)^2 / f(x) in powers of x where phi(), f() are Ramanujan theta functions.

Table of values

List of values

n	a(n)
0	1
1	-1
2	2
3	1
4	1
5	1
6	3
7	1
8	2
9	2
10	2
11	4
12	5
13	3
14	7
15	8
16	7
17	7
18	9
19	10
20	11
21	12
22	14
23	17
24	19
25	18
26	24
27	26
28	26
29	31
30	36
31	38
32	41
33	45
34	50
35	57
36	61
37	63
38	75
39	83
40	86
41	93
42	106
43	115
44	123
45	134
46	146
47	162
48	173
49	183
50	206
51	225
52	237
53	257
54	283
55	304
56	327
57	350
58	380
59	416
60	443
61	471
62	516
63	557

n	a(n)
0	1
1	-1
2	2
3	1
4	1
5	1
6	3
7	1
8	2
9	2
10	2
11	4
12	5
13	3
14	7
15	8
16	7
17	7
18	9
19	10
20	11
21	12
22	14
23	17
24	19
25	18
26	24
27	26
28	26
29	31
30	36
31	38
32	41
33	45
34	50
35	57
36	61
37	63
38	75
39	83
40	86
41	93
42	106
43	115
44	123
45	134
46	146
47	162
48	173
49	183
50	206
51	225
52	237
53	257
54	283
55	304
56	327
57	350
58	380
59	416
60	443
61	471
62	516
63	557

n	a(n)
0	1
1	-1
2	2
3	1
4	1
5	1
6	3
7	1
8	2
9	2
10	2
11	4
12	5
13	3
14	7
15	8
16	7
17	7
18	9
19	10
20	11
21	12
22	14
23	17
24	19
25	18
26	24
27	26
28	26
29	31
30	36
31	38
32	41
33	45
34	50
35	57
36	61
37	63
38	75
39	83
40	86
41	93
42	106
43	115
44	123
45	134
46	146
47	162
48	173
49	183
50	206
51	225
52	237
53	257
54	283
55	304
56	327
57	350
58	380
59	416
60	443
61	471
62	516
63	557