A196555 - cp's OEIS frontend

A196555 O.g.f.: Sum_{n>=0} 2(n+2)^(n-1) x^n / Product_{k=1..n} (1+k*x).

n	a(n)
0	1
1	2
2	6
3	28
4	186
5	1614
6	17332
7	222254
8	3317326
9	56532264
10	1083571422
11	23081180918
12	541047188936
13	13843339479298
14	383952455939662
15	11475711580482268
16	367729128426998450
17	12577206203908139494
18	457341567152354085700
19	17619050162270848917366

[1, 2, 6, 28, 186, 1614, 17332, 222254, 3317326, 56532264, 1083571422, 23081180918, 541047188936, 13843339479298, 383952455939662, 11475711580482268, 367729128426998450, 12577206203908139494, 457341567152354085700, 17619050162270848917366]

cp's OEIS Frontend

A196555 O.g.f.: Sum_{n>=0} 2(n+2)^(n-1) x^n / Product_{k=1..n} (1+k*x).

Table of values

List of values

cp's OEIS Frontend

A196555 O.g.f.: Sum_{n>=0} 2*(n+2)^(n-1) * x^n / Product_{k=1..n} (1+k*x).

Table of values

List of values

A196555 O.g.f.: Sum_{n>=0} 2(n+2)^(n-1) x^n / Product_{k=1..n} (1+k*x).