A262960 - cp's OEIS frontend

A262960 a(n) = sum(stirling2(n,k)(k+2)!(k+3)!, k=1..n)/144.

n	a(n)
1	1
2	21
3	661
4	28941
5	1678501
6	124467021
7	11484880261
8	1290503997741
9	173495416001701
10	27499205820027021
11	5075028072491665861
12	1078923766195953890541
13	261780612944688782844901
14	71901410584558939807059021
15	22195276604290979611365107461
16	7651037112318147566092161607341

[1, 21, 661, 28941, 1678501, 124467021, 11484880261, 1290503997741, 173495416001701, 27499205820027021, 5075028072491665861, 1078923766195953890541, 261780612944688782844901, 71901410584558939807059021, 22195276604290979611365107461, 7651037112318147566092161607341]

cp's OEIS Frontend

A262960 a(n) = sum(stirling2(n,k)(k+2)!(k+3)!, k=1..n)/144.

Table of values

List of values

cp's OEIS Frontend

A262960 a(n) = sum(stirling2(n,k)*(k+2)!*(k+3)!, k=1..n)/144.

Table of values

List of values

A262960 a(n) = sum(stirling2(n,k)(k+2)!(k+3)!, k=1..n)/144.