A100754 - cp's OEIS frontend

A100754 Triangle read by rows: T(n, k) = number of hill-free Dyck paths (i.e., no peaks at height 1) of semilength n and having k peaks.

n	a(n)
2	1
3	1
4	1
5	1
6	4
7	1
8	1
9	8
10	8
11	1
12	1
13	13
14	29
15	13
16	1
17	1
18	19
19	73
20	73
21	19
22	1
23	1
24	26
25	151
26	266
27	151
28	26
29	1
30	1
31	34
32	276
33	749
34	749
35	276
36	34
37	1
38	1
39	43
40	463
41	1781
42	2762
43	1781
44	463
45	43
46	1
47	1
48	53
49	729
50	3758
51	8321
52	8321
53	3758
54	729
55	53
56	1
57	1
58	64
59	1093
60	7253
61	21659
62	31004
63	21659
64	7253
65	1093
66	64
67	1

[1, 1, 1, 1, 4, 1, 1, 8, 8, 1, 1, 13, 29, 13, 1, 1, 19, 73, 73, 19, 1, 1, 26, 151, 266, 151, 26, 1, 1, 34, 276, 749, 749, 276, 34, 1, 1, 43, 463, 1781, 2762, 1781, 463, 43, 1, 1, 53, 729, 3758, 8321, 8321, 3758, 729, 53, 1, 1, 64, 1093, 7253, 21659, 31004, 21659, 7253, 1093, 64, 1]

cp's OEIS Frontend

A100754 Triangle read by rows: T(n, k) = number of hill-free Dyck paths (i.e., no peaks at height 1) of semilength n and having k peaks.

Table of values

List of values