A250694 - cp's OEIS frontend

A250694 Number of (3+1)X(n+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.

n	a(n)
1	2512
2	15246
3	74631
4	324648
5	1315446
6	5098590
7	19218493
8	71223396
9	261469392
10	955896790
11	3493273891
12	12795574192
13	47067986826
14	174102348110
15	648137931065
16	2429513706796
17	9171278516740
18	34862473392934
19	133406490904351

[2512, 15246, 74631, 324648, 1315446, 5098590, 19218493, 71223396, 261469392, 955896790, 3493273891, 12795574192, 47067986826, 174102348110, 648137931065, 2429513706796, 9171278516740, 34862473392934, 133406490904351]

cp's OEIS Frontend

A250694 Number of (3+1)X(n+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.

Table of values

List of values