A075514 - cp's OEIS frontend

A075514 a(0)=1; for n > 0, a(n)=sum(binomial(n,k)(binomial(n+k,k+1)^2) binomial(n+k,k),k=0..n).

n	a(n)
0	1
1	3
2	154
3	7941
4	429036
5	24123105
6	1399303662
7	83176893681
8	5041470373624
9	310449199290489
10	19369215839341710
11	1221826010437625703
12	77798300823672280164
13	4993767938470070592261
14	322795606469564782029126

[1, 3, 154, 7941, 429036, 24123105, 1399303662, 83176893681, 5041470373624, 310449199290489, 19369215839341710, 1221826010437625703, 77798300823672280164, 4993767938470070592261, 322795606469564782029126]

cp's OEIS Frontend

A075514 a(0)=1; for n > 0, a(n)=sum(binomial(n,k)(binomial(n+k,k+1)^2) binomial(n+k,k),k=0..n).

Table of values

List of values

cp's OEIS Frontend

A075514 a(0)=1; for n > 0, a(n)=sum(binomial(n,k)*(binomial(n+k,k+1)^2)* binomial(n+k,k),k=0..n).

Table of values

List of values

A075514 a(0)=1; for n > 0, a(n)=sum(binomial(n,k)(binomial(n+k,k+1)^2) binomial(n+k,k),k=0..n).