A198203 - cp's OEIS frontend

A198203 G.f.: exp( Sum_{n>=0} [ Sum_{k=0..2n} A027907(n,k)^n x^k ]* x^n/n ), where A027907 is the triangle of trinomial coefficients.

n	a(n)
0	1
1	1
2	2
3	5
4	19
5	160
6	3418
7	179705
8	19488053
9	4590422901
10	2738580784946
11	3583015072969210
12	9255051219746866753
13	56916338252385095986978
14	871826913772059843867743765
15	26753845554560439025697319191184
16	1695956186616651065722319776300825712

[1, 1, 2, 5, 19, 160, 3418, 179705, 19488053, 4590422901, 2738580784946, 3583015072969210, 9255051219746866753, 56916338252385095986978, 871826913772059843867743765, 26753845554560439025697319191184, 1695956186616651065722319776300825712]

cp's OEIS Frontend

A198203 G.f.: exp( Sum_{n>=0} [ Sum_{k=0..2n} A027907(n,k)^n x^k ]* x^n/n ), where A027907 is the triangle of trinomial coefficients.

Table of values

List of values

cp's OEIS Frontend

A198203 G.f.: exp( Sum_{n>=0} [ Sum_{k=0..2*n} A027907(n,k)^n * x^k ]* x^n/n ), where A027907 is the triangle of trinomial coefficients.

Table of values

List of values

A198203 G.f.: exp( Sum_{n>=0} [ Sum_{k=0..2n} A027907(n,k)^n x^k ]* x^n/n ), where A027907 is the triangle of trinomial coefficients.