A279735 - cp's OEIS frontend

A279735 Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

n	a(n)
1	0
2	2
3	8
4	26
5	80
6	240
7	708
8	2062
9	5944
10	16990
11	48220
12	136032
13	381768
14	1066586
15	2968040
16	8230370
17	22751528
18	62716752
19	172447884
20	473081830
21	1295113240
22	3538749862
23	9652296628
24	26285128896
25	71472896400
26	194075990450
27	526312559048

[0, 2, 8, 26, 80, 240, 708, 2062, 5944, 16990, 48220, 136032, 381768, 1066586, 2968040, 8230370, 22751528, 62716752, 172447884, 473081830, 1295113240, 3538749862, 9652296628, 26285128896, 71472896400, 194075990450, 526312559048]

cp's OEIS Frontend

A279735 Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

Table of values

List of values