A246576 - cp's OEIS frontend

A246576 G.f.: (Product_{r>=1} (1 - x^r))*x^(k^2)/Product_{i=1..k} ((1 - x^i)^2) with k=2.

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

[0, 0, 0, 0, 1, 1, 2, 1, 1, -1, -2, -4, -5, -6, -6, -5, -4, -1, 1, 5, 7, 11, 12, 15, 14, 15, 12, 11, 6, 3, -3, -7, -13, -17, -22, -25, -28, -29, -29, -28, -25, -22, -16, -11, -3, 3, 12, 18, 27, 32, 40, 43, 49, 49, 52, 49, 49, 43, 40, 31, 25, 14, 6, -6, -15, -27, -36, -47, -55, -64]

cp's OEIS Frontend

A246576 G.f.: (Product_{r>=1} (1 - x^r))*x^(k^2)/Product_{i=1..k} ((1 - x^i)^2) with k=2.

Table of values

List of values

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

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

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