A374606 - cp's OEIS frontend

A374606 a(n) = Sum_{k = 0..n} binomial(n, k)^2binomial(n+k, k)binomial(3n+2k+1, n).

n	a(n)
0	1
1	16
2	783
3	52000
4	3984625
5	331782528
6	29167556544
7	2664193232448
8	250366507021125
9	24050203166498080
10	2350951602405723031
11	233101029618601148160
12	23386851829632443099584
13	2369867535548685346720000
14	242199626637223381868264640
15	24935593829720710016846519424
16	2583792728153680286245574534061

[1, 16, 783, 52000, 3984625, 331782528, 29167556544, 2664193232448, 250366507021125, 24050203166498080, 2350951602405723031, 233101029618601148160, 23386851829632443099584, 2369867535548685346720000, 242199626637223381868264640, 24935593829720710016846519424, 2583792728153680286245574534061]

cp's OEIS Frontend

A374606 a(n) = Sum_{k = 0..n} binomial(n, k)^2binomial(n+k, k)binomial(3n+2k+1, n).

Table of values

List of values

cp's OEIS Frontend

A374606 a(n) = Sum_{k = 0..n} binomial(n, k)^2*binomial(n+k, k)*binomial(3*n+2*k+1, n).

Table of values

List of values

A374606 a(n) = Sum_{k = 0..n} binomial(n, k)^2binomial(n+k, k)binomial(3n+2k+1, n).