A304988 - cp's OEIS frontend

A304988 G.f.: Sum_{k>=0} A000041(k)^2 * x^k / Sum_{k>=0} A000009(k) * x^k.

n	a(n)
0	1
1	0
2	3
3	4
4	16
5	20
6	67
7	84
8	231
9	324
10	735
11	1026
12	2265
13	3086
14	6199
15	8880
16	16564
17	23390
18	42378
19	59496
20	103588
21	146376
22	244278
23	344186
24	564013
25	788168
26	1255201
27	1758400
28	2738833
29	3812242
30	5846114
31	8092092
32	12200957
33	16848156
34	24991705
35	34365176
36	50392543

[1, 0, 3, 4, 16, 20, 67, 84, 231, 324, 735, 1026, 2265, 3086, 6199, 8880, 16564, 23390, 42378, 59496, 103588, 146376, 244278, 344186, 564013, 788168, 1255201, 1758400, 2738833, 3812242, 5846114, 8092092, 12200957, 16848156, 24991705, 34365176, 50392543]

cp's OEIS Frontend

A304988 G.f.: Sum_{k>=0} A000041(k)^2 * x^k / Sum_{k>=0} A000009(k) * x^k.

Table of values

List of values