A257813 - cp's OEIS frontend

A257813 G.f. satisfies: A(x,y) = 1-x + y*x + Series_Reversion( x/A(x,y)^2 ).

n	a(n)
0	1
1	0
2	1
3	0
4	2
5	0
6	0
7	4
8	5
9	0
10	0
11	8
12	38
13	14
14	0
15	0
16	16
17	184
18	262
19	42
20	0
21	0
22	32
23	720
24	2460
25	1602
26	132
27	0
28	0
29	64
30	2480
31	16360
32	25837
33	9260
34	429
35	0
36	0
37	128
38	7840
39	87920
40	268134
41	237870
42	52040
43	1430
44	0
45	0
46	256
47	23296
48	408128
49	2109040
50	3638386
51	2023992
52	288494
53	4862
54	0
55	0
56	512
57	66048
58	1701504
59	13676128
60	40049492
61	43815744
62	16394336
63	1590638
64	16796
65	0

[1, 0, 1, 0, 2, 0, 0, 4, 5, 0, 0, 8, 38, 14, 0, 0, 16, 184, 262, 42, 0, 0, 32, 720, 2460, 1602, 132, 0, 0, 64, 2480, 16360, 25837, 9260, 429, 0, 0, 128, 7840, 87920, 268134, 237870, 52040, 1430, 0, 0, 256, 23296, 408128, 2109040, 3638386, 2023992, 288494, 4862, 0, 0, 512, 66048, 1701504, 13676128, 40049492, 43815744, 16394336, 1590638, 16796, 0]

cp's OEIS Frontend

A257813 G.f. satisfies: A(x,y) = 1-x + y*x + Series_Reversion( x/A(x,y)^2 ).

Table of values

List of values