A386831 - cp's OEIS frontend

A386831 a(n) = Sum_{k=0..n} 3^k * 2^(n-k) * binomial(4n+1,k) binomial(4*n-k,n-k).

n	a(n)
0	1
1	23
2	814
3	32102
4	1330436
5	56734023
6	2464566064
7	108464237352
8	4819668737436
9	215760575713148
10	9716002818365314
11	439628651114930102
12	19971546503835844436
13	910318041046245082898
14	41611957337801849102064
15	1906855257451887625497852
16	87569968895543824193201436

[1, 23, 814, 32102, 1330436, 56734023, 2464566064, 108464237352, 4819668737436, 215760575713148, 9716002818365314, 439628651114930102, 19971546503835844436, 910318041046245082898, 41611957337801849102064, 1906855257451887625497852, 87569968895543824193201436]

cp's OEIS Frontend

A386831 a(n) = Sum_{k=0..n} 3^k * 2^(n-k) * binomial(4n+1,k) binomial(4*n-k,n-k).

Table of values

List of values

cp's OEIS Frontend

A386831 a(n) = Sum_{k=0..n} 3^k * 2^(n-k) * binomial(4*n+1,k) * binomial(4*n-k,n-k).

Table of values

List of values

A386831 a(n) = Sum_{k=0..n} 3^k * 2^(n-k) * binomial(4n+1,k) binomial(4*n-k,n-k).