A250780 - cp's OEIS frontend

A250780 Number of (n+1) X (5+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	209
2	518
3	1194
4	2640
5	5688
6	12036
7	25126
8	51904
9	106344
10	216500
11	438614
12	885336
13	1782168
14	3580356
15	7182678
16	14395024
17	28829560
18	57711060
19	115489574
20	231065768
21	462241608
22	924621732
23	1849416198
24	3699045984
25	7398353992
26	14797027060

[209, 518, 1194, 2640, 5688, 12036, 25126, 51904, 106344, 216500, 438614, 885336, 1782168, 3580356, 7182678, 14395024, 28829560, 57711060, 115489574, 231065768, 462241608, 924621732, 1849416198, 3699045984, 7398353992, 14797027060]

cp's OEIS Frontend

A250780 Number of (n+1) X (5+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