A250771 - cp's OEIS frontend

A250771 Number of (3+1) X (n+1) 0..1 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	36
2	66
3	114
4	196
5	344
6	622
7	1158
8	2208
9	4284
10	8410
11	16634
12	33052
13	65856
14	131430
15	262542
16	524728
17	1049060
18	2097682
19	4194882
20	8389236
21	16777896
22	33555166
23	67109654
24	134218576
25	268436364
26	536871882
27	1073742858
28	2147484748
29	4294968464

[36, 66, 114, 196, 344, 622, 1158, 2208, 4284, 8410, 16634, 33052, 65856, 131430, 262542, 524728, 1049060, 2097682, 4194882, 8389236, 16777896, 33555166, 67109654, 134218576, 268436364, 536871882, 1073742858, 2147484748, 4294968464]

cp's OEIS Frontend

A250771 Number of (3+1) X (n+1) 0..1 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