A190159 - cp's OEIS frontend

A190159 Number of peakless Motzkin paths of length n and having no uhh...hd's starting at level 0, where u = (1, 1), h = (1, 0) and d = (1, -1).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	6
7	17
8	44
9	107
10	252
11	588
12	1376
13	3245
14	7717
15	18485
16	44535
17	107796
18	261937
19	638673
20	1562105
21	3831655
22	9423580
23	23233536
24	57412612
25	142174255
26	352770105
27	876922947
28	2183621209
29	5446177428
30	13603846132
31	34028890577
32	85234251090
33	213760737693
34	536733871490
35	1349210120198

[1, 1, 1, 1, 1, 2, 6, 17, 44, 107, 252, 588, 1376, 3245, 7717, 18485, 44535, 107796, 261937, 638673, 1562105, 3831655, 9423580, 23233536, 57412612, 142174255, 352770105, 876922947, 2183621209, 5446177428, 13603846132, 34028890577, 85234251090, 213760737693, 536733871490, 1349210120198]

cp's OEIS Frontend

A190159 Number of peakless Motzkin paths of length n and having no uhh...hd's starting at level 0, where u = (1, 1), h = (1, 0) and d = (1, -1).

Table of values

List of values