A246571 - cp's OEIS frontend

A246571 G.f.: Sum_{n>=0} x^n / (1-x)^(4n+3) [Sum_{k=0..2n+1} C(2n+1,k)^2 * x^k]^2.

n	a(n)
0	1
1	6
2	39
3	340
4	3041
5	28718
6	279987
7	2788464
8	28256709
9	290124182
10	3010689527
11	31516942060
12	332347297141
13	3526399820374
14	37616896717155
15	403127408462816
16	4337723615579781
17	46842172878701486
18	507454305359968827
19	5513119883595629556
20	60050379276555861857
21	655611405802102543086

[1, 6, 39, 340, 3041, 28718, 279987, 2788464, 28256709, 290124182, 3010689527, 31516942060, 332347297141, 3526399820374, 37616896717155, 403127408462816, 4337723615579781, 46842172878701486, 507454305359968827, 5513119883595629556, 60050379276555861857, 655611405802102543086]

cp's OEIS Frontend

A246571 G.f.: Sum_{n>=0} x^n / (1-x)^(4n+3) [Sum_{k=0..2n+1} C(2n+1,k)^2 * x^k]^2.

Table of values

List of values

cp's OEIS Frontend

A246571 G.f.: Sum_{n>=0} x^n / (1-x)^(4*n+3) * [Sum_{k=0..2*n+1} C(2*n+1,k)^2 * x^k]^2.

Table of values

List of values

A246571 G.f.: Sum_{n>=0} x^n / (1-x)^(4n+3) [Sum_{k=0..2n+1} C(2n+1,k)^2 * x^k]^2.