A386719 - cp's OEIS frontend

A386719 a(n) = Sum_{k=0..n} 2^k * binomial(4n,k) binomial(4*n-k-1,n-k).

n	a(n)
0	1
1	11
2	229
3	5381
4	133333
5	3404156
6	88600483
7	2337160718
8	62263902037
9	1671407550260
10	45137852641204
11	1224954657942125
12	33377579214681619
13	912572183952374996
14	25023054179816358034
15	687862647149533181036
16	18950129471489195622229
17	523067259899842250453060

[1, 11, 229, 5381, 133333, 3404156, 88600483, 2337160718, 62263902037, 1671407550260, 45137852641204, 1224954657942125, 33377579214681619, 912572183952374996, 25023054179816358034, 687862647149533181036, 18950129471489195622229, 523067259899842250453060]

cp's OEIS Frontend

A386719 a(n) = Sum_{k=0..n} 2^k * binomial(4n,k) binomial(4*n-k-1,n-k).

Table of values

List of values

cp's OEIS Frontend

A386719 a(n) = Sum_{k=0..n} 2^k * binomial(4*n,k) * binomial(4*n-k-1,n-k).

Table of values

List of values

A386719 a(n) = Sum_{k=0..n} 2^k * binomial(4n,k) binomial(4*n-k-1,n-k).