A337067 - cp's OEIS frontend

A337067 Number of nonnegative lattice paths from (0,0) to (n,0) where the allowed steps at (x,y) are (h,v) with h in {1..max(1,y)} and v in {-1,0,1}.

n	a(n)
0	1
1	1
2	2
3	4
4	9
5	22
6	57
7	156
8	447
9	1332
10	4103
11	12999
12	42176
13	139638
14	470353
15	1607861
16	5566543
17	19484810
18	68859862
19	245404650
20	881081082
21	3184214751
22	11575346316
23	42300703150
24	155316289004
25	572725968326
26	2120154235114
27	7876449597257
28	29356608044002

[1, 1, 2, 4, 9, 22, 57, 156, 447, 1332, 4103, 12999, 42176, 139638, 470353, 1607861, 5566543, 19484810, 68859862, 245404650, 881081082, 3184214751, 11575346316, 42300703150, 155316289004, 572725968326, 2120154235114, 7876449597257, 29356608044002]

cp's OEIS Frontend

A337067 Number of nonnegative lattice paths from (0,0) to (n,0) where the allowed steps at (x,y) are (h,v) with h in {1..max(1,y)} and v in {-1,0,1}.

Table of values

List of values