A368787 - cp's OEIS frontend

A368787 a(n) = (n+1) * (n!)^2 * Sum_{k=1..n} 1/((k+1) * (k!)^2).

n	a(n)
0	0
1	1
2	7
3	85
4	1701
5	51031
6	2143303
7	120024969
8	8641797769
9	777761799211
10	85553797913211
11	11293101324543853
12	1761723806628841069
13	320633732806449074559
14	67333083889354305657391
15	16159940133445033357773841
16	4395503716297049073314484753

[0, 1, 7, 85, 1701, 51031, 2143303, 120024969, 8641797769, 777761799211, 85553797913211, 11293101324543853, 1761723806628841069, 320633732806449074559, 67333083889354305657391, 16159940133445033357773841, 4395503716297049073314484753]

cp's OEIS Frontend

A368787 a(n) = (n+1) * (n!)^2 * Sum_{k=1..n} 1/((k+1) * (k!)^2).

Table of values

List of values