A281803 - cp's OEIS frontend

A281803 Number of 2 X n 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal 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	0
3	6
4	38
5	157
6	524
7	1631
8	4694
9	13006
10	34776
11	90703
12	231788
13	582557
14	1444328
15	3539638
16	8590070
17	20670737
18	49377196
19	117193443
20	276578138
21	649454590
22	1518211492
23	3534848915
24	8200472092
25	18962152697
26	43716887564
27	100516988278

[0, 0, 6, 38, 157, 524, 1631, 4694, 13006, 34776, 90703, 231788, 582557, 1444328, 3539638, 8590070, 20670737, 49377196, 117193443, 276578138, 649454590, 1518211492, 3534848915, 8200472092, 18962152697, 43716887564, 100516988278]

cp's OEIS Frontend

A281803 Number of 2 X n 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal 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