A281708 - cp's OEIS frontend

A281708 a(n) = (Sum_{k=1..n} k^3 * p(k) * p(n-k)) * 2/n where p = A000041.

n	a(n)
1	2
2	17
3	66
4	218
5	564
6	1407
7	3074
8	6536
9	12960
10	24991
11	46028
12	83166
13	145182
14	249151
15	417432
16	688742
17	1114978
18	1782228
19	2804886
20	4365560
21	6709074
22	10208894
23	15368870
24	22937184
25	33916388
26	49763175
27	72429396
28	104685554
29	150234266
30	214249998
31	303606838
32	427780502

[2, 17, 66, 218, 564, 1407, 3074, 6536, 12960, 24991, 46028, 83166, 145182, 249151, 417432, 688742, 1114978, 1782228, 2804886, 4365560, 6709074, 10208894, 15368870, 22937184, 33916388, 49763175, 72429396, 104685554, 150234266, 214249998, 303606838, 427780502]

cp's OEIS Frontend

A281708 a(n) = (Sum_{k=1..n} k^3 * p(k) * p(n-k)) * 2/n where p = A000041.

Table of values

List of values