A246570 - cp's OEIS frontend

A246570 G.f.: 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	2
2	15
3	116
4	1001
5	9322
6	89363
7	881376
8	8860677
9	90407666
10	933482527
11	9731366060
12	102259648701
13	1081810639970
14	11510355762339
15	123077391281248
16	1321739147949829
17	14248409211657754
18	154118033900091139
19	1672053762899099700
20	18189628173538580233
21	198362957005290443978

[1, 2, 15, 116, 1001, 9322, 89363, 881376, 8860677, 90407666, 933482527, 9731366060, 102259648701, 1081810639970, 11510355762339, 123077391281248, 1321739147949829, 14248409211657754, 154118033900091139, 1672053762899099700, 18189628173538580233, 198362957005290443978]

cp's OEIS Frontend

A246570 G.f.: 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

A246570 G.f.: 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

A246570 G.f.: Sum_{n>=0} x^n / (1-x)^(4n+1) [Sum_{k=0..2n} C(2n,k)^2 * x^k]^2.