A134425 - cp's OEIS frontend

A134425 Number of paths of length n in the first quadrant, starting at the origin and consisting of 2 kinds of upsteps U=(1,1) (U1 and U2), 3 kinds of flatsteps F=(1,0) (F1, F2 and F3) and 1 kind of downsteps D=(1,-1).

n	a(n)
0	1
1	5
2	27
3	151
4	861
5	4969
6	28911
7	169187
8	994329
9	5862925
10	34658691
11	205305423
12	1218183669
13	7238062641
14	43055682327
15	256365292443
16	1527728176305
17	9110460044821
18	54362600841963
19	324557242893191
20	1938584147698701

[1, 5, 27, 151, 861, 4969, 28911, 169187, 994329, 5862925, 34658691, 205305423, 1218183669, 7238062641, 43055682327, 256365292443, 1527728176305, 9110460044821, 54362600841963, 324557242893191, 1938584147698701]

cp's OEIS Frontend

A134425 Number of paths of length n in the first quadrant, starting at the origin and consisting of 2 kinds of upsteps U=(1,1) (U1 and U2), 3 kinds of flatsteps F=(1,0) (F1, F2 and F3) and 1 kind of downsteps D=(1,-1).

Table of values

List of values