A233243 Number of 5Xn 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, diagonally or antidiagonally, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order.

236, 123352, 107709266, 94601758339, 83262848013541, 73288254642491677, 64509967001742933388, 56783249139903123029508, 49982026556098478471557939, 43995424674982065897599967684, 38725869104364346871720595426476

Offset: 1

Author

R. H. Hardin, Dec 06 2013

Keywords

• nonn

Comments

Row 5 of A233239

Examples

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

Links

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