A303906 - cp's OEIS frontend

A303906 Expansion of Product_{k>=2} 1/(1 - x^(k*(k+1)/2)).

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	0
6	2
7	0
8	0
9	2
10	1
11	0
12	3
13	1
14	0
15	4
16	2
17	0
18	5
19	2
20	1
21	7
22	3
23	1
24	8
25	4
26	2
27	10
28	6
29	2
30	13
31	8
32	3
33	15
34	10
35	4
36	20
37	12
38	6
39	22
40	16
41	8
42	28
43	19
44	10
45	33
46	25
47	12
48	40
49	29
50	16
51	48
52	36
53	19
54	55
55	44
56	26
57	65
58	53
59	30
60	76
61	64
62	38
63	88
64	75
65	46
66	106
67	88
68	56
69	119
70	105
71	68
72	141
73	122
74	80
75	160

[1, 0, 0, 1, 0, 0, 2, 0, 0, 2, 1, 0, 3, 1, 0, 4, 2, 0, 5, 2, 1, 7, 3, 1, 8, 4, 2, 10, 6, 2, 13, 8, 3, 15, 10, 4, 20, 12, 6, 22, 16, 8, 28, 19, 10, 33, 25, 12, 40, 29, 16, 48, 36, 19, 55, 44, 26, 65, 53, 30, 76, 64, 38, 88, 75, 46, 106, 88, 56, 119, 105, 68, 141, 122, 80, 160]

cp's OEIS Frontend

A303906 Expansion of Product_{k>=2} 1/(1 - x^(k*(k+1)/2)).

Table of values

List of values

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	0
6	2
7	0
8	0
9	2
10	1
11	0
12	3
13	1
14	0
15	4
16	2
17	0
18	5
19	2
20	1
21	7
22	3
23	1
24	8
25	4
26	2
27	10
28	6
29	2
30	13
31	8
32	3
33	15
34	10
35	4
36	20
37	12
38	6
39	22
40	16
41	8
42	28
43	19
44	10
45	33
46	25
47	12
48	40
49	29
50	16
51	48
52	36
53	19
54	55
55	44
56	26
57	65
58	53
59	30
60	76
61	64
62	38
63	88
64	75
65	46
66	106
67	88
68	56
69	119
70	105
71	68
72	141
73	122
74	80
75	160

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	0
6	2
7	0
8	0
9	2
10	1
11	0
12	3
13	1
14	0
15	4
16	2
17	0
18	5
19	2
20	1
21	7
22	3
23	1
24	8
25	4
26	2
27	10
28	6
29	2
30	13
31	8
32	3
33	15
34	10
35	4
36	20
37	12
38	6
39	22
40	16
41	8
42	28
43	19
44	10
45	33
46	25
47	12
48	40
49	29
50	16
51	48
52	36
53	19
54	55
55	44
56	26
57	65
58	53
59	30
60	76
61	64
62	38
63	88
64	75
65	46
66	106
67	88
68	56
69	119
70	105
71	68
72	141
73	122
74	80
75	160

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	0
6	2
7	0
8	0
9	2
10	1
11	0
12	3
13	1
14	0
15	4
16	2
17	0
18	5
19	2
20	1
21	7
22	3
23	1
24	8
25	4
26	2
27	10
28	6
29	2
30	13
31	8
32	3
33	15
34	10
35	4
36	20
37	12
38	6
39	22
40	16
41	8
42	28
43	19
44	10
45	33
46	25
47	12
48	40
49	29
50	16
51	48
52	36
53	19
54	55
55	44
56	26
57	65
58	53
59	30
60	76
61	64
62	38
63	88
64	75
65	46
66	106
67	88
68	56
69	119
70	105
71	68
72	141
73	122
74	80
75	160