A175937 - cp's OEIS frontend

A175937 Number of lattice paths from (0,0) to (n,n) using steps S={(k,0),(0,k),(r,r)|0 which never go above the line y=x.

n	a(n)
0	1
1	2
2	10
3	62
4	448
5	3464
6	28111
7	236022
8	2033145
9	17867442
10	159558635
11	1443747386
12	13207922431
13	121962046864
14	1135246916024
15	10640772522150
16	100346005711723
17	951400275042466
18	9063703952844960
19	86718277215053218
20	832901296331740527

[1, 2, 10, 62, 448, 3464, 28111, 236022, 2033145, 17867442, 159558635, 1443747386, 13207922431, 121962046864, 1135246916024, 10640772522150, 100346005711723, 951400275042466, 9063703952844960, 86718277215053218, 832901296331740527]

cp's OEIS Frontend

A175937 Number of lattice paths from (0,0) to (n,n) using steps S={(k,0),(0,k),(r,r)|0 which never go above the line y=x.

Table of values

List of values