A250539 - cp's OEIS frontend

A250539 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 x(i,j)-x(i-1,j) in the j direction.

n	a(n)
1	6627
2	79366
3	644779
4	4169584
5	23289547
6	117777788
7	555362165
8	2489782728
9	10756619019
10	45218540866
11	186284270079
12	756106728264
13	3036114535027
14	12099190503944
15	47969168390489
16	189564322191712
17	747765014131475

[6627, 79366, 644779, 4169584, 23289547, 117777788, 555362165, 2489782728, 10756619019, 45218540866, 186284270079, 756106728264, 3036114535027, 12099190503944, 47969168390489, 189564322191712, 747765014131475]

cp's OEIS Frontend

A250539 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 x(i,j)-x(i-1,j) in the j direction.

Table of values

List of values