A246572 - cp's OEIS frontend

A246572 G.f.: sqrt( Sum_{n>=0} x^n / (1-x)^(4n+1) [Sum_{k=0..2n} C(2n,k)^2 * x^k]^2 ).

n	a(n)
0	1
1	1
2	7
3	51
4	425
5	3879
6	36527
7	355333
8	3531175
9	35673875
10	365179885
11	3777991337
12	39430009247
13	414567124053
14	4386228722281
15	46659584847835
16	498701253293129
17	5352318710976505
18	57655365854918487
19	623105208980304843
20	6753999316026236871
21	73403038257774972101
22	799674458063926645329

[1, 1, 7, 51, 425, 3879, 36527, 355333, 3531175, 35673875, 365179885, 3777991337, 39430009247, 414567124053, 4386228722281, 46659584847835, 498701253293129, 5352318710976505, 57655365854918487, 623105208980304843, 6753999316026236871, 73403038257774972101, 799674458063926645329]

cp's OEIS Frontend

A246572 G.f.: sqrt( Sum_{n>=0} x^n / (1-x)^(4n+1) [Sum_{k=0..2n} C(2n,k)^2 * x^k]^2 ).

Table of values

List of values

cp's OEIS Frontend

A246572 G.f.: sqrt( Sum_{n>=0} x^n / (1-x)^(4*n+1) * [Sum_{k=0..2*n} C(2*n,k)^2 * x^k]^2 ).

Table of values

List of values

A246572 G.f.: sqrt( Sum_{n>=0} x^n / (1-x)^(4n+1) [Sum_{k=0..2n} C(2n,k)^2 * x^k]^2 ).