A231320 Number of (n+1)X(4+1) 0..2 arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

1536, 192192, 30645600, 4509951264, 677392128096, 101255199764448, 15154743446853216, 2267704492520687136, 339353240593608062304, 50782606894918838006496, 7599400278857398619862624

Offset: 1

Author

R. H. Hardin, Nov 07 2013

Keywords

• nonn

Comments

Column 4 of A231324

Examples

			Some solutions for n=2
..0..1..2..0..1....0..0..0..1..0....0..1..0..2..0....0..0..0..0..1
..0..1..2..2..0....2..1..0..2..1....0..2..2..1..0....1..2..2..0..0
..2..0..2..2..0....0..2..1..2..0....1..1..2..0..0....1..0..0..1..2
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 81

Formula

Empirical recurrence of order 81 (see link above)