A211854 - cp's OEIS frontend

A211854 G.f. satisfies: A(x) = (1+xA(x)^2)(1+x^2A(x)^2)(1+x^3*A(x)^2).

n	a(n)
0	1
1	1
2	3
3	11
4	42
5	173
6	746
7	3321
8	15155
9	70516
10	333282
11	1595620
12	7722036
13	37715028
14	185661034
15	920244770
16	4588778327
17	23003827327
18	115867080623
19	586089365947
20	2975978506450
21	15163583668774
22	77507719810688
23	397320926569995
24	2042152353063874

[1, 1, 3, 11, 42, 173, 746, 3321, 15155, 70516, 333282, 1595620, 7722036, 37715028, 185661034, 920244770, 4588778327, 23003827327, 115867080623, 586089365947, 2975978506450, 15163583668774, 77507719810688, 397320926569995, 2042152353063874]

cp's OEIS Frontend

A211854 G.f. satisfies: A(x) = (1+xA(x)^2)(1+x^2A(x)^2)(1+x^3*A(x)^2).

Table of values

List of values

cp's OEIS Frontend

A211854 G.f. satisfies: A(x) = (1+x*A(x)^2)*(1+x^2*A(x)^2)*(1+x^3*A(x)^2).

Table of values

List of values

A211854 G.f. satisfies: A(x) = (1+xA(x)^2)(1+x^2A(x)^2)(1+x^3*A(x)^2).