A101275 - cp's OEIS frontend

A101275 Triangle read by rows: T(n,k) is the number of Schroeder paths of length 2n having exactly k down steps hitting the x-axis.

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	1
6	1
7	13
8	7
9	1
10	1
11	44
12	34
13	10
14	1
15	1
16	165
17	150
18	64
19	13
20	1
21	1
22	680
23	659
24	346
25	103
26	16
27	1
28	1
29	3001
30	2973
31	1753
32	659
33	151
34	19
35	1
36	1
37	13880
38	13844
39	8716
40	3798
41	1116
42	208
43	22
44	1
45	1
46	66345
47	66300
48	43384
49	20798
50	7226
51	1744
52	274
53	25
54	1
55	1
56	324908
57	324853
58	217804

[1, 1, 1, 1, 4, 1, 1, 13, 7, 1, 1, 44, 34, 10, 1, 1, 165, 150, 64, 13, 1, 1, 680, 659, 346, 103, 16, 1, 1, 3001, 2973, 1753, 659, 151, 19, 1, 1, 13880, 13844, 8716, 3798, 1116, 208, 22, 1, 1, 66345, 66300, 43384, 20798, 7226, 1744, 274, 25, 1, 1, 324908, 324853, 217804]

cp's OEIS Frontend

A101275 Triangle read by rows: T(n,k) is the number of Schroeder paths of length 2n having exactly k down steps hitting the x-axis.

Table of values

List of values