A222694 Number of 5Xn 0..2 arrays with exactly floor(5Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order

0, 216, 2050, 47696, 419562, 12765040, 126928736, 4292369132, 46437072442, 1665124000236, 18888312086238, 693531743163910, 8036001935941558, 298077593903645728, 3488969551802753323, 130077277806080796677

Offset

1,2

Comments

Row 5 of A222690

Links

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

Example

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

Crossrefs

Sequence in context: A016911 A370693 A323801 * A243862 A223559 A017055

Adjacent sequences: A222691 A222692 A222693 * A222695 A222696 A222697

Keyword

nonn

Author

R. H. Hardin Feb 28 2013

Status

approved