A190215 - cp's OEIS frontend

A190215 Riordan matrix ((1-x-x^2)/(1-2x-x^2),(x-x^2-x^3)/(1-2x-x^2)).

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	1
6	5
7	5
8	3
9	1
10	12
11	14
12	9
13	4
14	1
15	29
16	38
17	28
18	14
19	5
20	1
21	70
22	102
23	84
24	48
25	20
26	6
27	1
28	169
29	271
30	246
31	157
32	75
33	27
34	7
35	1
36	408
37	714
38	707
39	496
40	265
41	110
42	35
43	8
44	1
45	985
46	1868
47	2001
48	1526
49	896
50	417
51	154
52	44
53	9
54	1
55	2378
56	4858
57	5592
58	4596
59	2930
60	1500
61	623
62	208
63	54
64	10
65	1
66	5741
67	12569
68	15461
69	13602
70	9330
71	5186
72	2373
73	894
74	273
75	65
76	11
77	1

[1, 1, 1, 2, 2, 1, 5, 5, 3, 1, 12, 14, 9, 4, 1, 29, 38, 28, 14, 5, 1, 70, 102, 84, 48, 20, 6, 1, 169, 271, 246, 157, 75, 27, 7, 1, 408, 714, 707, 496, 265, 110, 35, 8, 1, 985, 1868, 2001, 1526, 896, 417, 154, 44, 9, 1, 2378, 4858, 5592, 4596, 2930, 1500, 623, 208, 54, 10, 1, 5741, 12569, 15461, 13602, 9330, 5186, 2373, 894, 273, 65, 11, 1]

cp's OEIS Frontend

A190215 Riordan matrix ((1-x-x^2)/(1-2x-x^2),(x-x^2-x^3)/(1-2x-x^2)).

Table of values

List of values