A337863 - cp's OEIS frontend

A337863 Twice the total area of all 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	0
1	0
2	2
3	8
4	32
5	123
6	459
7	1715
8	6432
9	24256
10	91993
11	350817
12	1344559
13	5176106
14	20003683
15	77567894
16	301667089
17	1176204195
18	4596267116
19	17995972170
20	70581437130
21	277244854010
22	1090484851145
23	4294324521033
24	16929104620229
25	66801975748076
26	263827090563129

[0, 0, 2, 8, 32, 123, 459, 1715, 6432, 24256, 91993, 350817, 1344559, 5176106, 20003683, 77567894, 301667089, 1176204195, 4596267116, 17995972170, 70581437130, 277244854010, 1090484851145, 4294324521033, 16929104620229, 66801975748076, 263827090563129]

cp's OEIS Frontend

A337863 Twice the total area of all 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