A147654 - cp's OEIS frontend

A147654 Result of using the positive integers 1,2,3,... as coefficients in an infinite polynomial series in x and then expressing this series as Product_{k>=1} (1+a(k)x^k).

n	a(n)
1	1
2	2
3	1
4	3
5	0
6	-2
7	0
8	9
9	0
10	-6
11	0
12	4
13	0
14	-18
15	0
16	93
17	0
18	-54
19	0
20	72
21	0
22	-186
23	0
24	232
25	0
26	-630
27	0
28	1020
29	0
30	-2106
31	0
32	10881
33	0
34	-7710
35	0
36	13824
37	0
38	-27594
39	0
40	49440
41	0
42	-97902
43	0
44	191844
45	0
46	-364722
47	0
48	590800
49	0
50	-1340622
51	0
52	2656920
53	0
54	-4918482
55	0
56	9791784
57	0
58	-18512790

[1, 2, 1, 3, 0, -2, 0, 9, 0, -6, 0, 4, 0, -18, 0, 93, 0, -54, 0, 72, 0, -186, 0, 232, 0, -630, 0, 1020, 0, -2106, 0, 10881, 0, -7710, 0, 13824, 0, -27594, 0, 49440, 0, -97902, 0, 191844, 0, -364722, 0, 590800, 0, -1340622, 0, 2656920, 0, -4918482, 0, 9791784, 0, -18512790]

cp's OEIS Frontend

A147654 Result of using the positive integers 1,2,3,... as coefficients in an infinite polynomial series in x and then expressing this series as Product_{k>=1} (1+a(k)x^k).

Table of values

List of values