A333105 - cp's OEIS frontend

A333105 Number of nonnegative lattice paths from (0,0) to (n,0) where the allowed steps at (x,y) are (1,v) with v in {-1,0,...,max(y,1)}.

n	a(n)
0	1
1	1
2	2
3	4
4	9
5	21
6	51
7	128
8	331
9	880
10	2402
11	6724
12	19285
13	56612
14	169908
15	520723
16	1627477
17	5180064
18	16766824
19	55112302
20	183710312
21	620213500
22	2118094664
23	7309077920
24	25459737905
25	89438446602
26	316606738516
27	1128566016617
28	4048230694964
29	14604517154115

[1, 1, 2, 4, 9, 21, 51, 128, 331, 880, 2402, 6724, 19285, 56612, 169908, 520723, 1627477, 5180064, 16766824, 55112302, 183710312, 620213500, 2118094664, 7309077920, 25459737905, 89438446602, 316606738516, 1128566016617, 4048230694964, 14604517154115]

cp's OEIS Frontend

A333105 Number of nonnegative lattice paths from (0,0) to (n,0) where the allowed steps at (x,y) are (1,v) with v in {-1,0,...,max(y,1)}.

Table of values

List of values