A317639 - cp's OEIS frontend

A317639 Number of equivalence classes of Dyck paths of semilength n for the consecutive pattern UDUDD, where U=(1,1) and D=(1,-1).

n	a(n)
0	1
1	1
2	1
3	2
4	4
5	6
6	10
7	19
8	32
9	54
10	98
11	170
12	292
13	520
14	909
15	1577
16	2787
17	4883
18	8515
19	14998
20	26299
21	45984
22	80863
23	141844
24	248381
25	436406
26	765649
27	1341844
28	2356500
29	4134749
30	7249981
31	12728630
32	22335110
33	39174776
34	68766785
35	120670190
36	211689586
37	371558266
38	652014636

[1, 1, 1, 2, 4, 6, 10, 19, 32, 54, 98, 170, 292, 520, 909, 1577, 2787, 4883, 8515, 14998, 26299, 45984, 80863, 141844, 248381, 436406, 765649, 1341844, 2356500, 4134749, 7249981, 12728630, 22335110, 39174776, 68766785, 120670190, 211689586, 371558266, 652014636]

cp's OEIS Frontend

A317639 Number of equivalence classes of Dyck paths of semilength n for the consecutive pattern UDUDD, where U=(1,1) and D=(1,-1).

Table of values

List of values