A367639 - cp's OEIS frontend

A367639 G.f. A(x) satisfies A(x) = (1 + x)^2 + x*A(x)^2 / (1 + x).

n	a(n)
0	1
1	3
2	6
3	16
4	52
5	184
6	688
7	2672
8	10672
9	43552
10	180800
11	761088
12	3241088
13	13937408
14	60435968
15	263962880
16	1160188672
17	5127762432
18	22775636992
19	101608357888
20	455105255424
21	2045751037952
22	9225923895296
23	41731062358016
24	189275050729472
25	860630181167104

[1, 3, 6, 16, 52, 184, 688, 2672, 10672, 43552, 180800, 761088, 3241088, 13937408, 60435968, 263962880, 1160188672, 5127762432, 22775636992, 101608357888, 455105255424, 2045751037952, 9225923895296, 41731062358016, 189275050729472, 860630181167104]

cp's OEIS Frontend

A367639 G.f. A(x) satisfies A(x) = (1 + x)^2 + x*A(x)^2 / (1 + x).

Table of values

List of values