A108746 - cp's OEIS frontend

A108746 Triangle read by rows: T(n,k) is number of Dyck paths of semilength n and having k peaks that are not of the form uudd (here u=(1,1), d=(1,-1)).

n	a(n)
0	1
1	0
2	1
3	1
4	0
5	1
6	1
7	2
8	1
9	1
10	2
11	4
12	4
13	3
14	1
15	4
16	9
17	13
18	9
19	6
20	1
21	8
22	23
23	34
24	35
25	21
26	10
27	1
28	17
29	56
30	97
31	111
32	86
33	46
34	15
35	1
36	37
37	138
38	272
39	347
40	321
41	201
42	92
43	21
44	1
45	82
46	344
47	749
48	1083
49	1111
50	846
51	449
52	169
53	28
54	1
55	185
56	859
57	2063
58	3289
59	3786
60	3255
61	2080
62	953
63	289
64	36
65	1
66	423
67	2154

[1, 0, 1, 1, 0, 1, 1, 2, 1, 1, 2, 4, 4, 3, 1, 4, 9, 13, 9, 6, 1, 8, 23, 34, 35, 21, 10, 1, 17, 56, 97, 111, 86, 46, 15, 1, 37, 138, 272, 347, 321, 201, 92, 21, 1, 82, 344, 749, 1083, 1111, 846, 449, 169, 28, 1, 185, 859, 2063, 3289, 3786, 3255, 2080, 953, 289, 36, 1, 423, 2154]

cp's OEIS Frontend

A108746 Triangle read by rows: T(n,k) is number of Dyck paths of semilength n and having k peaks that are not of the form uudd (here u=(1,1), d=(1,-1)).

Table of values

List of values