A059435 - cp's OEIS frontend

A059435 Number of lattice paths in plane starting at (0,0) and ending at (n,n) with steps from {(i,j): i+j > 0, i, j >= 0} that never go below the line y = x.

n	a(n)
0	1
1	2
2	12
3	88
4	720
5	6304
6	57792
7	547712
8	5323008
9	52761088
10	531311616
11	5420488704
12	55905767424
13	581954543616
14	6106210615296
15	64513688174592
16	685741070942208
17	7328106153115648
18	78684992821788672
19	848487859401261056

[1, 2, 12, 88, 720, 6304, 57792, 547712, 5323008, 52761088, 531311616, 5420488704, 55905767424, 581954543616, 6106210615296, 64513688174592, 685741070942208, 7328106153115648, 78684992821788672, 848487859401261056]

cp's OEIS Frontend

A059435 Number of lattice paths in plane starting at (0,0) and ending at (n,n) with steps from {(i,j): i+j > 0, i, j >= 0} that never go below the line y = x.

Table of values

List of values