A247748 - cp's OEIS frontend

A247748 Total area below all lattice paths from (0,0) to (n,0) that do not go below the x-axis or above the diagonal x=y and consist of steps u=(1,1), U=(1,3), H=(1,0), d=(1,-1) and D=(1,-3).

n	a(n)
0	0
1	0
2	1
3	4
4	29
5	128
6	683
7	3048
8	15631
9	73584
10	367878
11	1766272
12	8772765
13	42778568
14	212026492
15	1041894304
16	5164955809
17	25511089124
18	126587331646
19	627213797064
20	3115744498691
21	15471098709336
22	76936461658184
23	382598697899276
24	1904401873987964
25	9480893249387192

[0, 0, 1, 4, 29, 128, 683, 3048, 15631, 73584, 367878, 1766272, 8772765, 42778568, 212026492, 1041894304, 5164955809, 25511089124, 126587331646, 627213797064, 3115744498691, 15471098709336, 76936461658184, 382598697899276, 1904401873987964, 9480893249387192]

cp's OEIS Frontend

A247748 Total area below all lattice paths from (0,0) to (n,0) that do not go below the x-axis or above the diagonal x=y and consist of steps u=(1,1), U=(1,3), H=(1,0), d=(1,-1) and D=(1,-3).

Table of values

List of values