A098071 - cp's OEIS frontend

A098071 Triangle read by rows: T(n,k) is number of peakless Motzkin paths of length n and having k uhh...hd's starting at level 0, where u=(1,1), h=(1,0) and d=(1,-1) (can be easily expressed using RNA secondary structure terminology).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	3
7	2
8	6
9	6
10	10
11	1
12	17
13	15
14	5
15	44
16	23
17	15
18	107
19	42
20	35
21	1
22	252
23	94
24	70
25	7
26	588
27	233
28	129
29	28
30	1376
31	585
32	237
33	84
34	1
35	3245
36	1441
37	468
38	210
39	9
40	7717
41	3481
42	1026
43	466
44	45
45	18485
46	8319
47	2434
48	968
49	165
50	1
51	44535
52	19835
53	5972
54	1984
55	495
56	11
57	107796
58	47436

[1, 1, 1, 1, 1, 1, 3, 2, 6, 6, 10, 1, 17, 15, 5, 44, 23, 15, 107, 42, 35, 1, 252, 94, 70, 7, 588, 233, 129, 28, 1376, 585, 237, 84, 1, 3245, 1441, 468, 210, 9, 7717, 3481, 1026, 466, 45, 18485, 8319, 2434, 968, 165, 1, 44535, 19835, 5972, 1984, 495, 11, 107796, 47436]

cp's OEIS Frontend

A098071 Triangle read by rows: T(n,k) is number of peakless Motzkin paths of length n and having k uhh...hd's starting at level 0, where u=(1,1), h=(1,0) and d=(1,-1) (can be easily expressed using RNA secondary structure terminology).

Table of values

List of values