A350737 - cp's OEIS frontend

A350737 Expansion of Sum_{k>=0} (-1)^k * x^(k(3k+1)/2) / Product_{j=1..k} (1-x^j).

n	a(n)
0	1
1	0
2	-1
3	-1
4	-1
5	-1
6	-1
7	0
8	0
9	1
10	1
11	2
12	2
13	3
14	3
15	3
16	3
17	3
18	2
19	2
20	1
21	0
22	-1
23	-2
24	-4
25	-5
26	-6
27	-8
28	-9
29	-10
30	-11
31	-12
32	-12
33	-13
34	-12
35	-12
36	-11
37	-10
38	-7
39	-6
40	-3
41	0
42	4
43	7
44	12
45	15
46	21
47	25
48	30
49	34
50	40
51	43
52	48
53	51
54	55
55	56
56	59
57	59
58	60
59	58
60	56
61	52
62	49
63	42
64	35
65	26
66	17
67	5
68	-7
69	-21
70	-36
71	-52
72	-69
73	-87
74	-105
75	-124
76	-144
77	-163

[1, 0, -1, -1, -1, -1, -1, 0, 0, 1, 1, 2, 2, 3, 3, 3, 3, 3, 2, 2, 1, 0, -1, -2, -4, -5, -6, -8, -9, -10, -11, -12, -12, -13, -12, -12, -11, -10, -7, -6, -3, 0, 4, 7, 12, 15, 21, 25, 30, 34, 40, 43, 48, 51, 55, 56, 59, 59, 60, 58, 56, 52, 49, 42, 35, 26, 17, 5, -7, -21, -36, -52, -69, -87, -105, -124, -144, -163]

cp's OEIS Frontend

A350737 Expansion of Sum_{k>=0} (-1)^k * x^(k(3k+1)/2) / Product_{j=1..k} (1-x^j).

Table of values

List of values

cp's OEIS Frontend

A350737 Expansion of Sum_{k>=0} (-1)^k * x^(k*(3*k+1)/2) / Product_{j=1..k} (1-x^j).

Table of values

List of values

A350737 Expansion of Sum_{k>=0} (-1)^k * x^(k(3k+1)/2) / Product_{j=1..k} (1-x^j).