A308399 - cp's OEIS frontend

A308399 Expansion of 1 / Sum_{k=-oo..oo} (-x)^(k(4k + 1)).

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	1
10	1
11	3
12	1
13	3
14	3
15	2
16	6
17	3
18	4
19	8
20	4
21	9
22	9
23	6
24	15
25	10
26	12
27	20
28	12
29	22
30	23
31	18
32	35
33	26
34	30
35	46
36	32
37	51
38	54
39	45
40	76
41	62
42	71
43	99
44	76
45	111
46	117
47	104
48	160
49	136
50	154
51	205
52	167
53	230
54	244
55	223
56	319
57	286
58	319
59	406
60	349
61	456
62	484
63	458
64	619
65	570
66	632
67	779
68	695

[1, 0, 0, 1, 0, 1, 1, 0, 2, 1, 1, 3, 1, 3, 3, 2, 6, 3, 4, 8, 4, 9, 9, 6, 15, 10, 12, 20, 12, 22, 23, 18, 35, 26, 30, 46, 32, 51, 54, 45, 76, 62, 71, 99, 76, 111, 117, 104, 160, 136, 154, 205, 167, 230, 244, 223, 319, 286, 319, 406, 349, 456, 484, 458, 619, 570, 632, 779, 695]

cp's OEIS Frontend

A308399 Expansion of 1 / Sum_{k=-oo..oo} (-x)^(k(4k + 1)).

Table of values

List of values

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	1
10	1
11	3
12	1
13	3
14	3
15	2
16	6
17	3
18	4
19	8
20	4
21	9
22	9
23	6
24	15
25	10
26	12
27	20
28	12
29	22
30	23
31	18
32	35
33	26
34	30
35	46
36	32
37	51
38	54
39	45
40	76
41	62
42	71
43	99
44	76
45	111
46	117
47	104
48	160
49	136
50	154
51	205
52	167
53	230
54	244
55	223
56	319
57	286
58	319
59	406
60	349
61	456
62	484
63	458
64	619
65	570
66	632
67	779
68	695

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	1
10	1
11	3
12	1
13	3
14	3
15	2
16	6
17	3
18	4
19	8
20	4
21	9
22	9
23	6
24	15
25	10
26	12
27	20
28	12
29	22
30	23
31	18
32	35
33	26
34	30
35	46
36	32
37	51
38	54
39	45
40	76
41	62
42	71
43	99
44	76
45	111
46	117
47	104
48	160
49	136
50	154
51	205
52	167
53	230
54	244
55	223
56	319
57	286
58	319
59	406
60	349
61	456
62	484
63	458
64	619
65	570
66	632
67	779
68	695

cp's OEIS Frontend

A308399 Expansion of 1 / Sum_{k=-oo..oo} (-x)^(k*(4*k + 1)).

Table of values

List of values

A308399 Expansion of 1 / Sum_{k=-oo..oo} (-x)^(k(4k + 1)).

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	1
10	1
11	3
12	1
13	3
14	3
15	2
16	6
17	3
18	4
19	8
20	4
21	9
22	9
23	6
24	15
25	10
26	12
27	20
28	12
29	22
30	23
31	18
32	35
33	26
34	30
35	46
36	32
37	51
38	54
39	45
40	76
41	62
42	71
43	99
44	76
45	111
46	117
47	104
48	160
49	136
50	154
51	205
52	167
53	230
54	244
55	223
56	319
57	286
58	319
59	406
60	349
61	456
62	484
63	458
64	619
65	570
66	632
67	779
68	695