A223043 - cp's OEIS frontend

A223043 Number of 3Xn 0..3 arrays with no more than floor(3Xn/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.

n	a(n)
1	5
2	105
3	3780
4	229437
5	8580619
6	545607733
7	20971228220
8	1358651862708
9	53077561321144
10	3474963120998767
11	137187655129561217
12	9041338739497666603
13	359601802489393277805
14	23807690292325473464228
15	952177664603231816246021

[5, 105, 3780, 229437, 8580619, 545607733, 20971228220, 1358651862708, 53077561321144, 3474963120998767, 137187655129561217, 9041338739497666603, 359601802489393277805, 23807690292325473464228, 952177664603231816246021]

cp's OEIS Frontend

A223043 Number of 3Xn 0..3 arrays with no more than floor(3Xn/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Table of values

List of values