A102405 - cp's OEIS frontend

A102405 Triangle read by rows: T(n,k) is number of Dyck paths of semilength n having k ascents of length 1 that start at an odd level.

n	a(n)
0	1
1	1
2	2
3	4
4	1
5	10
6	3
7	1
8	26
9	12
10	3
11	1
12	72
13	41
14	15
15	3
16	1
17	206
18	143
19	58
20	18
21	3
22	1
23	606
24	492
25	231
26	76
27	21
28	3
29	1
30	1820
31	1693
32	891
33	335
34	95
35	24
36	3
37	1
38	5558
39	5823
40	3403
41	1411
42	455
43	115
44	27
45	3
46	1
47	17206
48	20040
49	12870
50	5848
51	2061
52	591
53	136
54	30
55	3
56	1
57	53872
58	69033
59	48318
60	23858
61	9143
62	2850
63	743
64	158
65	33
66	3
67	1

[1, 1, 2, 4, 1, 10, 3, 1, 26, 12, 3, 1, 72, 41, 15, 3, 1, 206, 143, 58, 18, 3, 1, 606, 492, 231, 76, 21, 3, 1, 1820, 1693, 891, 335, 95, 24, 3, 1, 5558, 5823, 3403, 1411, 455, 115, 27, 3, 1, 17206, 20040, 12870, 5848, 2061, 591, 136, 30, 3, 1, 53872, 69033, 48318, 23858, 9143, 2850, 743, 158, 33, 3, 1]

cp's OEIS Frontend

A102405 Triangle read by rows: T(n,k) is number of Dyck paths of semilength n having k ascents of length 1 that start at an odd level.

Table of values

List of values