A122919 - cp's OEIS frontend

A122919 Inverse of Riordan array (1/(1+x+x^2),x/(1+x)^2).

n	a(n)
0	1
1	1
2	1
3	3
4	3
5	1
6	9
7	10
8	5
9	1
10	28
11	34
12	21
13	7
14	1
15	90
16	117
17	83
18	36
19	9
20	1
21	297
22	407
23	319
24	164
25	55
26	11
27	1
28	1001
29	1430
30	1209
31	702
32	285
33	78
34	13
35	1
36	3432
37	5070
38	4550
39	2898
40	1350
41	454
42	105
43	15
44	1
45	11934
46	18122
47	17068
48	11696
49	6052

[1, 1, 1, 3, 3, 1, 9, 10, 5, 1, 28, 34, 21, 7, 1, 90, 117, 83, 36, 9, 1, 297, 407, 319, 164, 55, 11, 1, 1001, 1430, 1209, 702, 285, 78, 13, 1, 3432, 5070, 4550, 2898, 1350, 454, 105, 15, 1, 11934, 18122, 17068, 11696, 6052]

cp's OEIS Frontend

A122919 Inverse of Riordan array (1/(1+x+x^2),x/(1+x)^2).

Table of values

List of values