A246581 - cp's OEIS frontend

A246581 G.f.: x^((k^2 + k)/2) / (Product_{i=1..k} (1 - x^i) * Product_{r>=1} (1 + x^r)) with k = 2.

n	a(n)
0	0
1	0
2	0
3	1
4	0
5	1
6	-1
7	1
8	-2
9	1
10	-3
11	2
12	-4
13	3
14	-5
15	5
16	-6
17	7
18	-8
19	10
20	-10
21	13
22	-13
23	17
24	-17
25	21
26	-22
27	27
28	-28
29	33
30	-36
31	41
32	-45
33	50
34	-56
35	62
36	-69
37	75
38	-85
39	92
40	-103
41	111
42	-125
43	135
44	-150
45	162
46	-180
47	195
48	-215
49	232
50	-256
51	278
52	-303
53	329
54	-359
55	390
56	-423

[0, 0, 0, 1, 0, 1, -1, 1, -2, 1, -3, 2, -4, 3, -5, 5, -6, 7, -8, 10, -10, 13, -13, 17, -17, 21, -22, 27, -28, 33, -36, 41, -45, 50, -56, 62, -69, 75, -85, 92, -103, 111, -125, 135, -150, 162, -180, 195, -215, 232, -256, 278, -303, 329, -359, 390, -423]

cp's OEIS Frontend

A246581 G.f.: x^((k^2 + k)/2) / (Product_{i=1..k} (1 - x^i) * Product_{r>=1} (1 + x^r)) with k = 2.

Table of values

List of values