A128741 - cp's OEIS frontend

A128741 Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k returns to the x-axis (1 <= k <= n).

n	a(n)
1	1
2	2
3	1
4	6
5	3
6	1
7	20
8	11
9	4
10	1
11	72
12	42
13	17
14	5
15	1
16	274
17	166
18	72
19	24
20	6
21	1
22	1086
23	675
24	307
25	111
26	32
27	7
28	1
29	4438
30	2809
31	1322
32	506
33	160
34	41
35	8
36	1
37	18570
38	11913
39	5752
40	2296
41	775
42	220
43	51
44	9
45	1
46	79174
47	51319
48	25274
49	10418
50	3692
51	1127
52	292
53	62
54	10
55	1
56	342738
57	223977
58	112054

[1, 2, 1, 6, 3, 1, 20, 11, 4, 1, 72, 42, 17, 5, 1, 274, 166, 72, 24, 6, 1, 1086, 675, 307, 111, 32, 7, 1, 4438, 2809, 1322, 506, 160, 41, 8, 1, 18570, 11913, 5752, 2296, 775, 220, 51, 9, 1, 79174, 51319, 25274, 10418, 3692, 1127, 292, 62, 10, 1, 342738, 223977, 112054]

cp's OEIS Frontend

A128741 Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k returns to the x-axis (1 <= k <= n).

Table of values

List of values