A250846 - cp's OEIS frontend

A250846 Number of (n+1) X (1+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	100
2	543
3	2670
4	12311
5	54410
6	233683
7	983950
8	4085631
9	16796370
10	68555723
11	278351030
12	1125823351
13	4540620730
14	18274604163
15	73435058910
16	294750719471
17	1182035443490
18	4737241699003
19	18976271027590
20	75987005717991

[100, 543, 2670, 12311, 54410, 233683, 983950, 4085631, 16796370, 68555723, 278351030, 1125823351, 4540620730, 18274604163, 73435058910, 294750719471, 1182035443490, 4737241699003, 18976271027590, 75987005717991]

cp's OEIS Frontend

A250846 Number of (n+1) X (1+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