A216585 - cp's OEIS frontend

A216585 G.f.: exp( Sum_{n>=1} A000984(n)A002426(n)x^n/n ), where A000984 is the central binomial coefficients and A002426 is the central trinomial coefficients.

n	a(n)
0	1
1	2
2	11
3	66
4	485
5	3842
6	32712
7	291568
8	2697610
9	25679316
10	250190125
11	2484270622
12	25062816127
13	256275246582
14	2650947762450
15	27697861115740
16	291943603838698
17	3101066786857876
18	33167191013319532
19	356924515784037128
20	3862299973917286526
21	42003704374124712172

[1, 2, 11, 66, 485, 3842, 32712, 291568, 2697610, 25679316, 250190125, 2484270622, 25062816127, 256275246582, 2650947762450, 27697861115740, 291943603838698, 3101066786857876, 33167191013319532, 356924515784037128, 3862299973917286526, 42003704374124712172]

cp's OEIS Frontend

A216585 G.f.: exp( Sum_{n>=1} A000984(n)A002426(n)x^n/n ), where A000984 is the central binomial coefficients and A002426 is the central trinomial coefficients.

Table of values

List of values

cp's OEIS Frontend

A216585 G.f.: exp( Sum_{n>=1} A000984(n)*A002426(n)*x^n/n ), where A000984 is the central binomial coefficients and A002426 is the central trinomial coefficients.

Table of values

List of values

A216585 G.f.: exp( Sum_{n>=1} A000984(n)A002426(n)x^n/n ), where A000984 is the central binomial coefficients and A002426 is the central trinomial coefficients.