A258315 - cp's OEIS frontend

A258315 G.f. C(x) satisfies: C(x) = 1 + 2xA(x)B(x) where A(x) = B(x)C(x) and B(x) = 1 + xA(x)C(x).

n	a(n)
0	1
1	2
2	8
3	46
4	304
5	2178
6	16456
7	129086
8	1041248
9	8582274
10	71964232
11	611954286
12	5264786448
13	45741886786
14	400776143752
15	3537136653566
16	31417018218688
17	280616550025218
18	2518975669228936
19	22712641808517166
20	205612543320237808
21	1868112977079278594
22	17028815533533595080

[1, 2, 8, 46, 304, 2178, 16456, 129086, 1041248, 8582274, 71964232, 611954286, 5264786448, 45741886786, 400776143752, 3537136653566, 31417018218688, 280616550025218, 2518975669228936, 22712641808517166, 205612543320237808, 1868112977079278594, 17028815533533595080]

cp's OEIS Frontend

A258315 G.f. C(x) satisfies: C(x) = 1 + 2xA(x)B(x) where A(x) = B(x)C(x) and B(x) = 1 + xA(x)C(x).

Table of values

List of values

cp's OEIS Frontend

A258315 G.f. C(x) satisfies: C(x) = 1 + 2*x*A(x)*B(x) where A(x) = B(x)*C(x) and B(x) = 1 + x*A(x)*C(x).

Table of values

List of values

A258315 G.f. C(x) satisfies: C(x) = 1 + 2xA(x)B(x) where A(x) = B(x)C(x) and B(x) = 1 + xA(x)C(x).