A279263 - cp's OEIS frontend

A279263 Number of n X 3 0..1 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

n	a(n)
1	2
2	10
3	29
4	86
5	240
6	626
7	1603
8	4030
9	9973
10	24388
11	59068
12	141920
13	338689
14	803630
15	1897359
16	4460226
17	10444904
18	24376990
19	56720671
20	131619998
21	304674313
22	703690416
23	1621976820
24	3731637260
25	8570604669
26	19653441614
27	45002040707

[2, 10, 29, 86, 240, 626, 1603, 4030, 9973, 24388, 59068, 141920, 338689, 803630, 1897359, 4460226, 10444904, 24376990, 56720671, 131619998, 304674313, 703690416, 1621976820, 3731637260, 8570604669, 19653441614, 45002040707]

cp's OEIS Frontend

A279263 Number of n X 3 0..1 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

Table of values

List of values