A101975 - cp's OEIS frontend

A101975 Triangle read by rows: number of Dyck paths of semilength n with k peaks after the first return (0 <= k < n).

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	1
7	5
8	4
9	4
10	1
11	14
12	9
13	11
14	7
15	1
16	42
17	23
18	27
19	28
20	11
21	1
22	132
23	65
24	66
25	87
26	62
27	16
28	1
29	429
30	197
31	170
32	239
33	250
34	122
35	22
36	1
37	1430
38	626
39	471
40	627
41	829
42	630
43	219
44	29
45	1
46	4862
47	2056
48	1398
49	1656
50	2448
51	2553
52	1419
53	366
54	37
55	1
56	16796
57	6918
58	4381
59	4554
60	6803
61	8813
62	6979
63	2917
64	578
65	46
66	1

[1, 1, 1, 2, 2, 1, 5, 4, 4, 1, 14, 9, 11, 7, 1, 42, 23, 27, 28, 11, 1, 132, 65, 66, 87, 62, 16, 1, 429, 197, 170, 239, 250, 122, 22, 1, 1430, 626, 471, 627, 829, 630, 219, 29, 1, 4862, 2056, 1398, 1656, 2448, 2553, 1419, 366, 37, 1, 16796, 6918, 4381, 4554, 6803, 8813, 6979, 2917, 578, 46, 1]

cp's OEIS Frontend

A101975 Triangle read by rows: number of Dyck paths of semilength n with k peaks after the first return (0 <= k < n).

Table of values

List of values