A127619 - cp's OEIS frontend

A127619 Number of walks from (0,0) to (n,n) in the region 0 <= x-y <= 5 with the steps (1,0), (0, 1), (2,0) and (0,2).

n	a(n)
0	1
1	1
2	5
3	22
4	117
5	654
6	3674
7	20763
8	117349
9	663529
10	3751874
11	21215245
12	119963514
13	678345474
14	3835772387
15	21689760681
16	122646936325
17	693519457822
18	3921575652821
19	22174944672838
20	125390459051898
21	709032985366923

[1, 1, 5, 22, 117, 654, 3674, 20763, 117349, 663529, 3751874, 21215245, 119963514, 678345474, 3835772387, 21689760681, 122646936325, 693519457822, 3921575652821, 22174944672838, 125390459051898, 709032985366923]

cp's OEIS Frontend

A127619 Number of walks from (0,0) to (n,n) in the region 0 <= x-y <= 5 with the steps (1,0), (0, 1), (2,0) and (0,2).

Table of values

List of values