A247285 - cp's OEIS frontend

A247285 Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n (n>=1) having k (0<=k<=n-1) upper interactions.

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	5
9	7
10	1
11	1
12	7
13	19
14	14
15	1
16	1
17	9
18	36
19	59
20	26
21	1
22	1
23	11
24	58
25	150
26	162
27	46
28	1
29	1
30	13
31	85
32	300
33	543
34	408
35	79
36	1
37	1
38	15
39	117
40	523
41	1335
42	1771
43	966
44	133
45	1
46	1
47	17
48	154
49	833
50	2747
51	5303
52	5335
53	2184
54	221
55	1
56	1
57	19
58	196
59	1244
60	5031
61	12792
62	19272
63	15099
64	4767
65	364
66	1

[1, 1, 1, 1, 3, 1, 1, 5, 7, 1, 1, 7, 19, 14, 1, 1, 9, 36, 59, 26, 1, 1, 11, 58, 150, 162, 46, 1, 1, 13, 85, 300, 543, 408, 79, 1, 1, 15, 117, 523, 1335, 1771, 966, 133, 1, 1, 17, 154, 833, 2747, 5303, 5335, 2184, 221, 1, 1, 19, 196, 1244, 5031, 12792, 19272, 15099, 4767, 364, 1]

cp's OEIS Frontend

A247285 Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n (n>=1) having k (0<=k<=n-1) upper interactions.

Table of values

List of values