A185608 Number of (n+1)X5 0..3 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant

22236, 3017724, 173403770, 15211806726, 1112996493332

Offset

1,1

Comments

Column 4 of A185609

Links

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

Example

Some solutions for 3X5
..0..0..3..3..1....0..0..0..2..1....0..0..1..0..2....0..0..3..0..3
..0..0..0..0..0....0..0..2..3..1....0..0..3..0..2....0..0..1..0..2
..1..2..2..1..0....2..0..2..1..0....3..0..3..0..1....1..0..3..0..0

Crossrefs

Sequence in context: A060109 A217875 A253737 * A204148 A251825 A119568

Adjacent sequences: A185605 A185606 A185607 * A185609 A185610 A185611

Keyword

nonn

Author

R. H. Hardin Jan 31 2011

Status

approved