A336243 - cp's OEIS frontend

A336243 a(0) = 1; a(n) = Sum_{k=0..n-1} binomial(n,k)^2 * (n-k-1)! * a(k).

n	a(n)
0	1
1	1
2	5
3	56
4	1114
5	34624
6	1549648
7	94402356
8	7511324448
9	756406501200
10	94039208461584
11	14146468841290752
12	2532586289913605088
13	532113978869395649856
14	129662518122880634567232
15	36270261084908437106586624
16	11543682123659880166705099776

[1, 1, 5, 56, 1114, 34624, 1549648, 94402356, 7511324448, 756406501200, 94039208461584, 14146468841290752, 2532586289913605088, 532113978869395649856, 129662518122880634567232, 36270261084908437106586624, 11543682123659880166705099776]

cp's OEIS Frontend

A336243 a(0) = 1; a(n) = Sum_{k=0..n-1} binomial(n,k)^2 * (n-k-1)! * a(k).

Table of values

List of values