A091156 - cp's OEIS frontend

A091156 Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n, having k long ascents (i.e., ascents of length at least 2). Rows are of length 1,1,2,2,3,3,... .

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	4
6	1
7	11
8	2
9	1
10	26
11	15
12	1
13	57
14	69
15	5
16	1
17	120
18	252
19	56
20	1
21	247
22	804
23	364
24	14
25	1
26	502
27	2349
28	1800
29	210
30	1
31	1013
32	6455
33	7515
34	1770
35	42
36	1
37	2036
38	16962
39	27940
40	11055
41	792
42	1
43	4083
44	43086
45	95458
46	57035
47	8217
48	132
49	1
50	8178
51	106587
52	305812
53	257257

[1, 1, 1, 1, 1, 4, 1, 11, 2, 1, 26, 15, 1, 57, 69, 5, 1, 120, 252, 56, 1, 247, 804, 364, 14, 1, 502, 2349, 1800, 210, 1, 1013, 6455, 7515, 1770, 42, 1, 2036, 16962, 27940, 11055, 792, 1, 4083, 43086, 95458, 57035, 8217, 132, 1, 8178, 106587, 305812, 257257]

cp's OEIS Frontend

A091156 Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n, having k long ascents (i.e., ascents of length at least 2). Rows are of length 1,1,2,2,3,3,... .

Table of values

List of values