A250856 - cp's OEIS frontend

A250856 Number of (4+1) X (n+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	12311
2	63631
3	223933
4	626416
5	1499679
6	3204951
7	6279401
8	11485528
9	19866631
10	32808359
11	52106341
12	80039896
13	119451823
14	173834271
15	247420689
16	345283856
17	473439991
18	638958943
19	850080461
20	1116336544
21	1448679871
22	1859618311

[12311, 63631, 223933, 626416, 1499679, 3204951, 6279401, 11485528, 19866631, 32808359, 52106341, 80039896, 119451823, 173834271, 247420689, 345283856, 473439991, 638958943, 850080461, 1116336544, 1448679871, 1859618311]

cp's OEIS Frontend

A250856 Number of (4+1) X (n+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