A102402 - cp's OEIS frontend

A102402 Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k ascents of length 2.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	6
7	6
8	2
9	17
10	15
11	10
12	46
13	51
14	30
15	5
16	128
17	175
18	91
19	35
20	372
21	568
22	336
23	140
24	14
25	1109
26	1827
27	1296
28	504
29	126
30	3349
31	5980
32	4785
33	2010
34	630
35	42
36	10221
37	19833
38	17215
39	8415
40	2640
41	462
42	31527
43	66078
44	61908
45	34210
46	11385
47	2772
48	132
49	98178
50	220649
51	223444
52	134706
53	50908
54	13299
55	1716

[1, 1, 1, 1, 2, 3, 6, 6, 2, 17, 15, 10, 46, 51, 30, 5, 128, 175, 91, 35, 372, 568, 336, 140, 14, 1109, 1827, 1296, 504, 126, 3349, 5980, 4785, 2010, 630, 42, 10221, 19833, 17215, 8415, 2640, 462, 31527, 66078, 61908, 34210, 11385, 2772, 132, 98178, 220649, 223444, 134706, 50908, 13299, 1716]

cp's OEIS Frontend

A102402 Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k ascents of length 2.

Table of values

List of values