A304992 - cp's OEIS frontend

A304992 G.f.: Sum_{k>=0} A000041(k)^3 * x^k / Sum_{k>=0} A000009(k) * x^k.

n	a(n)
0	1
1	0
2	7
3	18
4	98
5	210
6	969
7	1938
8	7037
9	15258
10	44815
11	93180
12	262391
13	518550
14	1311015
15	2657328
16	6189160
17	12124098
18	27239760
19	52063668
20	111630480
21	211503288
22	432900236
23	806091180
24	1610854427
25	2940167268
26	5691072911
27	10289144976
28	19402974147
29	34523231688

[1, 0, 7, 18, 98, 210, 969, 1938, 7037, 15258, 44815, 93180, 262391, 518550, 1311015, 2657328, 6189160, 12124098, 27239760, 52063668, 111630480, 211503288, 432900236, 806091180, 1610854427, 2940167268, 5691072911, 10289144976, 19402974147, 34523231688]

cp's OEIS Frontend

A304992 G.f.: Sum_{k>=0} A000041(k)^3 * x^k / Sum_{k>=0} A000009(k) * x^k.

Table of values

List of values