A185458 Number of (n+1)X(n+1) binary arrays with no 2X2 subblock determinant equal to any horizontal or vertical neighbor 2X2 subblock determinant

16, 92, 866, 13977, 265724, 11083678, 560051658, 65404659846, 9335228454364, 3094788312788324, 1254062946005871088, 1180690397907898894604, 1358747319295346555003560, 3633103600068550758778045101

Offset

1,1

Comments

Diagonal of A185467

Links

R. H. Hardin, Table of n, a(n) for n = 1..18

Example

Some solutions for 3X3
..0..0..1....1..0..0....1..1..0....0..1..0....0..1..1....1..0..1....0..0..1
..0..1..0....0..1..1....1..1..1....1..0..1....0..1..0....1..1..0....0..1..1
..1..0..1....0..1..0....0..1..1....0..1..0....1..0..0....0..0..1....1..0..0

Crossrefs

Sequence in context: A170920 A027938 A301527 * A108676 A304344 A316215

Adjacent sequences: A185455 A185456 A185457 * A185459 A185460 A185461

Keyword

nonn

Author

R. H. Hardin Jan 28 2011

Status

approved