A250786 - cp's OEIS frontend

A250786 Number of (4+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	72
2	196
3	482
4	1152
5	2640
6	5882
7	12796
8	27344
9	57610
10	120060
11	248072
12	509158
13	1039532
14	2113580
15	4283210
16	8657344
17	17462056
18	35162842
19	70712260
20	142050352
21	285113682
22	571866796
23	1146386672
24	2297066582
25	4601080260
26	9213401692

[72, 196, 482, 1152, 2640, 5882, 12796, 27344, 57610, 120060, 248072, 509158, 1039532, 2113580, 4283210, 8657344, 17462056, 35162842, 70712260, 142050352, 285113682, 571866796, 1146386672, 2297066582, 4601080260, 9213401692]

cp's OEIS Frontend

A250786 Number of (4+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