A069269 - cp's OEIS frontend

A069269 Second level generalization of Catalan triangle (0th level is Pascal's triangle A007318; first level is Catalan triangle A009766; 3rd level is A069270).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	1
7	3
8	7
9	12
10	1
11	4
12	12
13	30
14	55
15	1
16	5
17	18
18	55
19	143
20	273
21	1
22	6
23	25
24	88
25	273
26	728
27	1428
28	1
29	7
30	33
31	130
32	455
33	1428
34	3876
35	7752
36	1
37	8
38	42
39	182
40	700
41	2448
42	7752
43	21318
44	43263
45	1
46	9
47	52
48	245
49	1020
50	3876
51	13566
52	43263
53	120175
54	246675

[1, 1, 1, 1, 2, 3, 1, 3, 7, 12, 1, 4, 12, 30, 55, 1, 5, 18, 55, 143, 273, 1, 6, 25, 88, 273, 728, 1428, 1, 7, 33, 130, 455, 1428, 3876, 7752, 1, 8, 42, 182, 700, 2448, 7752, 21318, 43263, 1, 9, 52, 245, 1020, 3876, 13566, 43263, 120175, 246675]

cp's OEIS Frontend

A069269 Second level generalization of Catalan triangle (0th level is Pascal's triangle A007318; first level is Catalan triangle A009766; 3rd level is A069270).

Table of values

List of values