A187258 - cp's OEIS frontend

A187258 Number of UH^jD's for some j>0, in all peakless Motzkin paths of length n (here U=(1,1), D=(1,-1) and H=(1,0); can be easily expressed using RNA secondary structure terminology).

n	a(n)
0	0
1	0
2	0
3	1
4	3
5	7
6	17
7	41
8	99
9	242
10	596
11	1477
12	3681
13	9215
14	23155
15	58368
16	147530
17	373768
18	948882
19	2413264
20	6147414
21	15682008
22	40056238
23	102434119
24	262228051
25	671945055
26	1723350315
27	4423518544
28	11362907022
29	29208834520
30	75131251334
31	193370093508
32	497969663062

[0, 0, 0, 1, 3, 7, 17, 41, 99, 242, 596, 1477, 3681, 9215, 23155, 58368, 147530, 373768, 948882, 2413264, 6147414, 15682008, 40056238, 102434119, 262228051, 671945055, 1723350315, 4423518544, 11362907022, 29208834520, 75131251334, 193370093508, 497969663062]

cp's OEIS Frontend

A187258 Number of UH^jD's for some j>0, in all peakless Motzkin paths of length n (here U=(1,1), D=(1,-1) and H=(1,0); can be easily expressed using RNA secondary structure terminology).

Table of values

List of values