A295385 - cp's OEIS frontend

A295385 a(n) = n!Sum_{k=0..n} binomial(2n,n-k)*n^k/k!.

n	a(n)
0	1
1	3
2	32
3	579
4	14736
5	483115
6	19376928
7	918980139
8	50306339072
9	3121729082739
10	216541483852800
11	16603614676249843
12	1394473165806440448
13	127308860552307549531
14	12553171419275174137856
15	1329537514269062031406875
16	150531055969843353812533248
17	18143286205523964035258551651

[1, 3, 32, 579, 14736, 483115, 19376928, 918980139, 50306339072, 3121729082739, 216541483852800, 16603614676249843, 1394473165806440448, 127308860552307549531, 12553171419275174137856, 1329537514269062031406875, 150531055969843353812533248, 18143286205523964035258551651]

cp's OEIS Frontend

A295385 a(n) = n!Sum_{k=0..n} binomial(2n,n-k)*n^k/k!.

Table of values

List of values

cp's OEIS Frontend

A295385 a(n) = n!*Sum_{k=0..n} binomial(2*n,n-k)*n^k/k!.

Table of values

List of values

A295385 a(n) = n!Sum_{k=0..n} binomial(2n,n-k)*n^k/k!.