A104547 - cp's OEIS frontend

A104547 Number of Schroeder paths of length 2n having no UHD, UHHD, UHHHD, ..., where U=(1,1), D=(1,-1), H=(2,0).

n	a(n)
0	1
1	2
2	5
3	16
4	60
5	245
6	1051
7	4660
8	21174
9	98072
10	461330
11	2197997
12	10585173
13	51443379
14	251982793
15	1242734592
16	6165798680
17	30754144182
18	154123971932
19	775669589436
20	3918703613376
21	19866054609754
22	101029857327802
23	515275408644773

[1, 2, 5, 16, 60, 245, 1051, 4660, 21174, 98072, 461330, 2197997, 10585173, 51443379, 251982793, 1242734592, 6165798680, 30754144182, 154123971932, 775669589436, 3918703613376, 19866054609754, 101029857327802, 515275408644773]

cp's OEIS Frontend

A104547 Number of Schroeder paths of length 2n having no UHD, UHHD, UHHHD, ..., where U=(1,1), D=(1,-1), H=(2,0).

Table of values

List of values