A109971 - cp's OEIS frontend

A109971 Inverse of Riordan array (1,x(1-x)^2), A109970.

n	a(n)
0	1
1	0
2	1
3	0
4	2
5	1
6	0
7	7
8	4
9	1
10	0
11	30
12	18
13	6
14	1
15	0
16	143
17	88
18	33
19	8
20	1
21	0
22	728
23	455
24	182
25	52
26	10
27	1
28	0
29	3876
30	2448
31	1020
32	320
33	75
34	12
35	1
36	0
37	21318
38	13566
39	5814
40	1938
41	510
42	102
43	14
44	1
45	0
46	120175
47	76912
48	33649
49	11704
50	3325
51	760
52	133
53	16
54	1
55	0
56	690690
57	444015
58	197340

[1, 0, 1, 0, 2, 1, 0, 7, 4, 1, 0, 30, 18, 6, 1, 0, 143, 88, 33, 8, 1, 0, 728, 455, 182, 52, 10, 1, 0, 3876, 2448, 1020, 320, 75, 12, 1, 0, 21318, 13566, 5814, 1938, 510, 102, 14, 1, 0, 120175, 76912, 33649, 11704, 3325, 760, 133, 16, 1, 0, 690690, 444015, 197340]

cp's OEIS Frontend

A109971 Inverse of Riordan array (1,x(1-x)^2), A109970.

Table of values

List of values