A250848 - cp's OEIS frontend

A250848 Number of (n+1) X (3+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.

n	a(n)
1	1225
2	8037
3	44797
4	223933
5	1043885
6	4648157
7	20067117
8	84805533
9	353060845
10	1454214877
11	5943685037
12	24157039133
13	97778698605
14	394573711197
15	1588686176557
16	6385947864733
17	25637459261165
18	102830957105117

[1225, 8037, 44797, 223933, 1043885, 4648157, 20067117, 84805533, 353060845, 1454214877, 5943685037, 24157039133, 97778698605, 394573711197, 1588686176557, 6385947864733, 25637459261165, 102830957105117]

cp's OEIS Frontend

A250848 Number of (n+1) X (3+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.

Table of values

List of values