A250805 - cp's OEIS frontend

A250805 Number of (n+1)X(n+1) 0..2 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	36
2	379
3	3081
4	20631
5	120304
6	634509
7	3104985
8	14345803
9	63351756
10	269772537
11	1114996177
12	4494912111
13	17741279760
14	68762781541
15	262334037201
16	987009622419
17	3668074098940
18	13482629809713
19	49069419165081
20	176992814380663

[36, 379, 3081, 20631, 120304, 634509, 3104985, 14345803, 63351756, 269772537, 1114996177, 4494912111, 17741279760, 68762781541, 262334037201, 987009622419, 3668074098940, 13482629809713, 49069419165081, 176992814380663]

cp's OEIS Frontend

A250805 Number of (n+1)X(n+1) 0..2 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