A281060 - cp's OEIS frontend

A281060 Number of 5Xn 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

n	a(n)
1	0
2	122
3	1492
4	3416
5	7803
6	16875
7	32370
8	59669
9	107693
10	191953
11	339219
12	595824
13	1041681
14	1814253
15	3149435
16	5451162
17	9409735
18	16202663
19	27835100
20	47716151
21	81633286
22	139397983
23	237621979
24	404396106
25	687167939
26	1165993033
27	1975805797

[0, 122, 1492, 3416, 7803, 16875, 32370, 59669, 107693, 191953, 339219, 595824, 1041681, 1814253, 3149435, 5451162, 9409735, 16202663, 27835100, 47716151, 81633286, 139397983, 237621979, 404396106, 687167939, 1165993033, 1975805797]

cp's OEIS Frontend

A281060 Number of 5Xn 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

Table of values

List of values