A204622 - cp's OEIS frontend

A204622 Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..2 introduced in row major order.

n	a(n)
1	12
2	2049
3	2490558
4	21550390395
5	1327448018292252
6	582081449451902347866
7	1816995451072561641887723586
8	40376415985445663379679403072064855
9	6387126785648912581213165822171077074078454

[12, 2049, 2490558, 21550390395, 1327448018292252, 582081449451902347866, 1816995451072561641887723586, 40376415985445663379679403072064855, 6387126785648912581213165822171077074078454]

cp's OEIS Frontend

A204622 Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..2 introduced in row major order.

Table of values

List of values