A292437 - cp's OEIS frontend

A292437 a(n) is the number of lattice walks from (0,0) to (3n,3n) that use steps in directions {(3,0), (2,1), (1,2), (0,3)} and stay weakly below the line y=x.

n	a(n)
0	1
1	2
2	13
3	120
4	1288
5	15046
6	185658
7	2380720
8	31411376
9	423660504
10	5814905977
11	80956085304
12	1140478875656
13	16227516683124
14	232870988052180
15	3366482778363616
16	48981220255732960
17	716707681487535144
18	10539913681632290532
19	155697664218428455520
20	2309297999296926348448

[1, 2, 13, 120, 1288, 15046, 185658, 2380720, 31411376, 423660504, 5814905977, 80956085304, 1140478875656, 16227516683124, 232870988052180, 3366482778363616, 48981220255732960, 716707681487535144, 10539913681632290532, 155697664218428455520, 2309297999296926348448]

cp's OEIS Frontend

A292437 a(n) is the number of lattice walks from (0,0) to (3n,3n) that use steps in directions {(3,0), (2,1), (1,2), (0,3)} and stay weakly below the line y=x.

Table of values

List of values

cp's OEIS Frontend

A292437 a(n) is the number of lattice walks from (0,0) to (3*n,3*n) that use steps in directions {(3,0), (2,1), (1,2), (0,3)} and stay weakly below the line y=x.

Table of values

List of values

A292437 a(n) is the number of lattice walks from (0,0) to (3n,3n) that use steps in directions {(3,0), (2,1), (1,2), (0,3)} and stay weakly below the line y=x.