A047265 - cp's OEIS frontend

A047265 Triangle T(n,k), for n >= 1, 1 <= k <= n, read by rows, giving coefficient of x^n in expansion of (Product_{j>=1} (1-(-x)^j) - 1 )^k.

n	a(n)
1	1
2	-1
3	1
4	0
5	-2
6	1
7	0
8	1
9	-3
10	1
11	-1
12	0
13	3
14	-4
15	1
16	0
17	-2
18	-1
19	6
20	-5
21	1
22	-1
23	2
24	-3
25	-4
26	10
27	-6
28	1
29	0
30	-2
31	6
32	-3
33	-10
34	15
35	-7
36	1
37	0
38	2
39	-6
40	12
41	0
42	-20
43	21
44	-8
45	1
46	0
47	1
48	6
49	-16
50	19
51	9
52	-35
53	28
54	-9
55	1
56	0
57	0
58	0
59	16
60	-35
61	24
62	28
63	-56
64	36
65	-10
66	1
67	-1
68	2
69	-3
70	-6
71	40
72	-65
73	21
74	62
75	-84
76	45
77	-11
78	1

[1, -1, 1, 0, -2, 1, 0, 1, -3, 1, -1, 0, 3, -4, 1, 0, -2, -1, 6, -5, 1, -1, 2, -3, -4, 10, -6, 1, 0, -2, 6, -3, -10, 15, -7, 1, 0, 2, -6, 12, 0, -20, 21, -8, 1, 0, 1, 6, -16, 19, 9, -35, 28, -9, 1, 0, 0, 0, 16, -35, 24, 28, -56, 36, -10, 1, -1, 2, -3, -6, 40, -65, 21, 62, -84, 45, -11, 1]

cp's OEIS Frontend

A047265 Triangle T(n,k), for n >= 1, 1 <= k <= n, read by rows, giving coefficient of x^n in expansion of (Product_{j>=1} (1-(-x)^j) - 1 )^k.

Table of values

List of values

n	a(n)
1	1
2	-1
3	1
4	0
5	-2
6	1
7	0
8	1
9	-3
10	1
11	-1
12	0
13	3
14	-4
15	1
16	0
17	-2
18	-1
19	6
20	-5
21	1
22	-1
23	2
24	-3
25	-4
26	10
27	-6
28	1
29	0
30	-2
31	6
32	-3
33	-10
34	15
35	-7
36	1
37	0
38	2
39	-6
40	12
41	0
42	-20
43	21
44	-8
45	1
46	0
47	1
48	6
49	-16
50	19
51	9
52	-35
53	28
54	-9
55	1
56	0
57	0
58	0
59	16
60	-35
61	24
62	28
63	-56
64	36
65	-10
66	1
67	-1
68	2
69	-3
70	-6
71	40
72	-65
73	21
74	62
75	-84
76	45
77	-11
78	1

n	a(n)
1	1
2	-1
3	1
4	0
5	-2
6	1
7	0
8	1
9	-3
10	1
11	-1
12	0
13	3
14	-4
15	1
16	0
17	-2
18	-1
19	6
20	-5
21	1
22	-1
23	2
24	-3
25	-4
26	10
27	-6
28	1
29	0
30	-2
31	6
32	-3
33	-10
34	15
35	-7
36	1
37	0
38	2
39	-6
40	12
41	0
42	-20
43	21
44	-8
45	1
46	0
47	1
48	6
49	-16
50	19
51	9
52	-35
53	28
54	-9
55	1
56	0
57	0
58	0
59	16
60	-35
61	24
62	28
63	-56
64	36
65	-10
66	1
67	-1
68	2
69	-3
70	-6
71	40
72	-65
73	21
74	62
75	-84
76	45
77	-11
78	1

n	a(n)
1	1
2	-1
3	1
4	0
5	-2
6	1
7	0
8	1
9	-3
10	1
11	-1
12	0
13	3
14	-4
15	1
16	0
17	-2
18	-1
19	6
20	-5
21	1
22	-1
23	2
24	-3
25	-4
26	10
27	-6
28	1
29	0
30	-2
31	6
32	-3
33	-10
34	15
35	-7
36	1
37	0
38	2
39	-6
40	12
41	0
42	-20
43	21
44	-8
45	1
46	0
47	1
48	6
49	-16
50	19
51	9
52	-35
53	28
54	-9
55	1
56	0
57	0
58	0
59	16
60	-35
61	24
62	28
63	-56
64	36
65	-10
66	1
67	-1
68	2
69	-3
70	-6
71	40
72	-65
73	21
74	62
75	-84
76	45
77	-11
78	1