A206394 Number of nX6 0..5 arrays with no element equal to another within a city block distance of two, and new values 0..5 introduced in row major order.

15, 1201, 12428, 151630, 1787258, 21983256, 268956972, 3301485294, 40603817198, 499201392028, 6147736324286, 75698270712532, 932481394642188, 11487787221488608, 141538253304943642, 1744036023952329892

Offset: 1

Author

R. H. Hardin Feb 07 2012

Keywords

• nonn

Comments

Column 6 of A206396

Examples

			Some solutions for n=4
..0..1..2..0..1..3....0..1..2..0..3..4....0..1..2..0..3..1....0..1..2..0..1..2
..2..3..4..5..2..4....2..5..4..1..2..5....2..3..4..1..2..4....2..3..4..5..3..4
..4..5..0..1..3..5....1..3..0..5..4..0....1..5..0..3..5..0....5..0..1..2..0..1
..0..1..2..4..0..1....5..4..2..3..1..2....0..4..1..2..4..1....3..4..5..3..4..2
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..31