A364232 - cp's OEIS frontend

A364232 Expansion of Sum_{k>=0} x^(3k+1) / (1 + x^(3k+1))^2.

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

[1, -2, 3, -3, 5, -6, 8, -10, 9, -9, 11, -9, 14, -16, 15, -19, 17, -18, 20, -17, 24, -21, 23, -30, 26, -28, 27, -24, 29, -27, 32, -42, 33, -33, 40, -27, 38, -40, 42, -53, 41, -48, 44, -35, 45, -45, 47, -57, 57, -47, 51, -42, 53, -54, 56, -80, 60, -57, 59, -51, 62, -64, 72, -83, 70, -63, 68, -53, 69, -72]

cp's OEIS Frontend

A364232 Expansion of Sum_{k>=0} x^(3k+1) / (1 + x^(3k+1))^2.

Table of values

List of values

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

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

cp's OEIS Frontend

A364232 Expansion of Sum_{k>=0} x^(3*k+1) / (1 + x^(3*k+1))^2.

Table of values

List of values

A364232 Expansion of Sum_{k>=0} x^(3k+1) / (1 + x^(3k+1))^2.

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