A340886 - cp's OEIS frontend

A340886 a(0) = 1; a(n) = Sum_{k=0..n-1} binomial(n,k)^2 * 2^(n-k-1) * a(k).

n	a(n)
0	1
1	1
2	6
3	76
4	1720
5	60816
6	3096384
7	214579296
8	19422473088
9	2224980891904
10	314675568756736
11	53849929134122496
12	10966912240761425920
13	2621246193301011159040
14	726608751113679704248320
15	231217063994112487051984896
16	83713709650818121936828858368

[1, 1, 6, 76, 1720, 60816, 3096384, 214579296, 19422473088, 2224980891904, 314675568756736, 53849929134122496, 10966912240761425920, 2621246193301011159040, 726608751113679704248320, 231217063994112487051984896, 83713709650818121936828858368]

cp's OEIS Frontend

A340886 a(0) = 1; a(n) = Sum_{k=0..n-1} binomial(n,k)^2 * 2^(n-k-1) * a(k).

Table of values

List of values