A250781 - cp's OEIS frontend

A250781 Number of (n+1) X (6+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	436
2	1106
3	2604
4	5882
5	12950
6	27986
7	59590
8	125334
9	260916
10	538538
11	1103752
12	2249266
13	4562698
14	9222258
15	18588322
16	37386830
17	75076376
18	150582730
19	301768276
20	604371338
21	1209885342
22	2421317714
23	4844708318
24	9692167046
25	19387949788

[436, 1106, 2604, 5882, 12950, 27986, 59590, 125334, 260916, 538538, 1103752, 2249266, 4562698, 9222258, 18588322, 37386830, 75076376, 150582730, 301768276, 604371338, 1209885342, 2421317714, 4844708318, 9692167046, 19387949788]

cp's OEIS Frontend

A250781 Number of (n+1) X (6+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