A371926 - cp's OEIS frontend

A371926 Number of Dyck paths of semilength n with strongly unimodal peak heights such that neighboring peaks differ in height by exactly one and first and last peak are at height one.

n	a(n)
0	1
1	1
2	0
3	0
4	1
5	0
6	0
7	1
8	2
9	1
10	1
11	4
12	8
13	11
14	14
15	23
16	44
17	79
18	130
19	209
20	347
21	598
22	1042
23	1801
24	3084
25	5273
26	9060
27	15658
28	27152
29	47122
30	81769
31	141919
32	246525
33	428742
34	746479
35	1300806
36	2268169
37	3956840
38	6905817
39	12057999
40	21063319
41	36809385
42	64350631
43	112535774

[1, 1, 0, 0, 1, 0, 0, 1, 2, 1, 1, 4, 8, 11, 14, 23, 44, 79, 130, 209, 347, 598, 1042, 1801, 3084, 5273, 9060, 15658, 27152, 47122, 81769, 141919, 246525, 428742, 746479, 1300806, 2268169, 3956840, 6905817, 12057999, 21063319, 36809385, 64350631, 112535774]

cp's OEIS Frontend

A371926 Number of Dyck paths of semilength n with strongly unimodal peak heights such that neighboring peaks differ in height by exactly one and first and last peak are at height one.

Table of values

List of values