A379185 - cp's OEIS frontend

A379185 G.f. A(x) satisfies A(x) = 1/((1 - xA(x)^2) (1 - x*A(x))^2).

n	a(n)
0	1
1	3
2	18
3	139
4	1222
5	11618
6	116372
7	1209779
8	12930966
9	141225530
10	1569136588
11	17680779230
12	201562070356
13	2320574126216
14	26942875644408
15	315109464849603
16	3708926665685286
17	43901133108206978
18	522240410257549260
19	6240258006163094026
20	74864641626913850964

[1, 3, 18, 139, 1222, 11618, 116372, 1209779, 12930966, 141225530, 1569136588, 17680779230, 201562070356, 2320574126216, 26942875644408, 315109464849603, 3708926665685286, 43901133108206978, 522240410257549260, 6240258006163094026, 74864641626913850964]

cp's OEIS Frontend

A379185 G.f. A(x) satisfies A(x) = 1/((1 - xA(x)^2) (1 - x*A(x))^2).

Table of values

List of values

cp's OEIS Frontend

A379185 G.f. A(x) satisfies A(x) = 1/((1 - x*A(x)^2) * (1 - x*A(x))^2).

Table of values

List of values

A379185 G.f. A(x) satisfies A(x) = 1/((1 - xA(x)^2) (1 - x*A(x))^2).