A203886 Number of (n+1)X8 0..6 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements

3074677333, 5804976472057, 15261911634884845, 45601045546133880817, 143131084226139999444805

Offset

1,1

Comments

Column 7 of A203887

Links

Table of n, a(n) for n=1..5.

Example

Some solutions for n=4
..6..5..6..0..1..5..0..6....4..6..2..0..5..1..4..5....6..2..6..4..2..4..3..2
..4..6..4..6..0..1..5..0....6..2..6..2..0..5..1..4....4..6..0..6..4..4..4..3
..4..4..6..1..6..0..1..5....4..6..5..6..2..0..5..1....6..1..6..5..6..4..5..4
..5..4..4..6..5..6..0..1....4..4..6..6..6..2..0..5....3..6..5..5..5..6..4..3
..0..5..4..4..6..6..6..0....2..4..4..6..2..2..2..0....1..3..6..5..5..5..6..4

Crossrefs

Sequence in context: A336966 A333127 A225140 * A257914 A257893 A015397

Adjacent sequences: A203883 A203884 A203885 * A203887 A203888 A203889

Keyword

nonn

Author

R. H. Hardin Jan 07 2012

Status

approved