A307376 - cp's OEIS frontend

A307376 a(n) = 1/n! * Sum_{k=0..n} (2n+k)!/((n-k)!k!*2^k).

n	a(n)
0	1
1	5
2	81
3	2330
4	97405
5	5360607
6	366432990
7	29948982492
8	2849278444155
9	309333396512855
10	37741150862494651
11	5112458462852223210
12	761358344010536141506
13	123636426598733578925150
14	21742842987398075489784900
15	4116720379411455407932693320
16	834934865669512891440715729125

[1, 5, 81, 2330, 97405, 5360607, 366432990, 29948982492, 2849278444155, 309333396512855, 37741150862494651, 5112458462852223210, 761358344010536141506, 123636426598733578925150, 21742842987398075489784900, 4116720379411455407932693320, 834934865669512891440715729125]

cp's OEIS Frontend

A307376 a(n) = 1/n! * Sum_{k=0..n} (2n+k)!/((n-k)!k!*2^k).

Table of values

List of values

cp's OEIS Frontend

A307376 a(n) = 1/n! * Sum_{k=0..n} (2*n+k)!/((n-k)!*k!*2^k).

Table of values

List of values

A307376 a(n) = 1/n! * Sum_{k=0..n} (2n+k)!/((n-k)!k!*2^k).