A250809 - cp's OEIS frontend

A250809 Number of (n+1) X (5+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	784
2	3097
3	11116
4	37333
5	120304
6	377857
7	1167796
8	3572173
9	10854424
10	32839417
11	99070876
12	298318213
13	897166144
14	2695921777
15	8096612356
16	24307531453
17	72957983464
18	218944728937
19	656975744236
20	1971210347893
21	5914197274384

[784, 3097, 11116, 37333, 120304, 377857, 1167796, 3572173, 10854424, 32839417, 99070876, 298318213, 897166144, 2695921777, 8096612356, 24307531453, 72957983464, 218944728937, 656975744236, 1971210347893, 5914197274384]

cp's OEIS Frontend

A250809 Number of (n+1) X (5+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