A243413 - cp's OEIS frontend

A243413 Number of Dyck paths of semilength n having exactly 1 occurrence of the consecutive steps UDUUDU (with U=(1,1), D=(1,-1)).

n	a(n)
4	1
5	5
6	19
7	70
8	259
9	962
10	3585
11	13399
12	50201
13	188481
14	709001
15	2671624
16	10082895
17	38107919
18	144214978
19	546413880
20	2072553851
21	7869081412
22	29904874545
23	113744129791
24	432969825404
25	1649313815911
26	6287005845873
27	23980562901849
28	91523321091182
29	349497990760012

[1, 5, 19, 70, 259, 962, 3585, 13399, 50201, 188481, 709001, 2671624, 10082895, 38107919, 144214978, 546413880, 2072553851, 7869081412, 29904874545, 113744129791, 432969825404, 1649313815911, 6287005845873, 23980562901849, 91523321091182, 349497990760012]

cp's OEIS Frontend

A243413 Number of Dyck paths of semilength n having exactly 1 occurrence of the consecutive steps UDUUDU (with U=(1,1), D=(1,-1)).

Table of values

List of values