A386898 - cp's OEIS frontend

A386898 a(n) = Sum_{k=0..n} binomial(5n+1,k) binomial(5*n-k,n-k).

n	a(n)
0	1
1	11
2	199
3	4031
4	85919
5	1885311
6	42154111
7	955020287
8	21847988735
9	503573013503
10	11675986431999
11	272033089535999
12	6363380561141759
13	149354395882487807
14	3515589114309115903
15	82957940541503045631
16	1961823306198598418431
17	46482660516543479939071

[1, 11, 199, 4031, 85919, 1885311, 42154111, 955020287, 21847988735, 503573013503, 11675986431999, 272033089535999, 6363380561141759, 149354395882487807, 3515589114309115903, 82957940541503045631, 1961823306198598418431, 46482660516543479939071]

cp's OEIS Frontend

A386898 a(n) = Sum_{k=0..n} binomial(5n+1,k) binomial(5*n-k,n-k).

Table of values

List of values

cp's OEIS Frontend

A386898 a(n) = Sum_{k=0..n} binomial(5*n+1,k) * binomial(5*n-k,n-k).

Table of values

List of values

A386898 a(n) = Sum_{k=0..n} binomial(5n+1,k) binomial(5*n-k,n-k).