A203933 Number of (n+1)X8 0..5 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements

701538156, 833700866796, 1311917257647036, 2297197186864332876, 4194818908674768075816, 7801943096191368986437356

Offset

1,1

Comments

Column 7 of A203934

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Sequence in context: A274363 A034651 A274813 * A219279 A086041 A244186

Adjacent sequences: A203930 A203931 A203932 * A203934 A203935 A203936

Keyword

nonn

Author

R. H. Hardin Jan 08 2012

Status

approved