A166284 - cp's OEIS frontend

A166284 Number of Dyck paths with no UUU's and no DDD's of semilength n and having k UUDD's (0<=k<=floor(n/2); U=(1,1), D=(1,-1)).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	2
6	4
7	3
8	1
9	7
10	7
11	3
12	13
13	17
14	6
15	1
16	26
17	36
18	16
19	4
20	52
21	77
22	45
23	10
24	1
25	104
26	173
27	111
28	30
29	5
30	212
31	387
32	268
33	95
34	15
35	1
36	438
37	857
38	666
39	266
40	50
41	6
42	910
43	1911
44	1641
45	714
46	175
47	21
48	1
49	1903
50	4287
51	3975
52	1940
53	546
54	77
55	7
56	4009
57	9619
58	9606
59	5205
60	1610
61	294
62	28
63	1

[1, 1, 1, 1, 2, 2, 4, 3, 1, 7, 7, 3, 13, 17, 6, 1, 26, 36, 16, 4, 52, 77, 45, 10, 1, 104, 173, 111, 30, 5, 212, 387, 268, 95, 15, 1, 438, 857, 666, 266, 50, 6, 910, 1911, 1641, 714, 175, 21, 1, 1903, 4287, 3975, 1940, 546, 77, 7, 4009, 9619, 9606, 5205, 1610, 294, 28, 1]

cp's OEIS Frontend

A166284 Number of Dyck paths with no UUU's and no DDD's of semilength n and having k UUDD's (0<=k<=floor(n/2); U=(1,1), D=(1,-1)).

Table of values

List of values