A037976 - cp's OEIS frontend

A037976 a(n) = (1/4)(binomial(4n, 2n) - (-1)^nbinomial(2n, n) + (1-(-1)^n)binomial(2*n, n)^2).

n	a(n)
0	0
1	4
2	16
3	436
4	3200
5	78004
6	675808
7	15919320
8	150266880
9	3450748180
10	34461586016
11	774842070600
12	8061900244736
13	178065876017176
14	1912172640160960
15	41596867935469936
16	458156035085377536

[0, 4, 16, 436, 3200, 78004, 675808, 15919320, 150266880, 3450748180, 34461586016, 774842070600, 8061900244736, 178065876017176, 1912172640160960, 41596867935469936, 458156035085377536]

cp's OEIS Frontend

A037976 a(n) = (1/4)(binomial(4n, 2n) - (-1)^nbinomial(2n, n) + (1-(-1)^n)binomial(2*n, n)^2).

Table of values

List of values

cp's OEIS Frontend

A037976 a(n) = (1/4)*(binomial(4*n, 2*n) - (-1)^n*binomial(2*n, n) + (1-(-1)^n)*binomial(2*n, n)^2).

Table of values

List of values

A037976 a(n) = (1/4)(binomial(4n, 2n) - (-1)^nbinomial(2n, n) + (1-(-1)^n)binomial(2*n, n)^2).