A185613 Number of (n+1)X5 0..2 arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum

3645, 313105, 16830089, 1099131565, 68751907871, 4433660417573

Offset

1,1

Comments

Column 4 of A185614

Links

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

Example

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

Crossrefs

Sequence in context: A253464 A015294 A186870 * A232837 A252086 A212852

Adjacent sequences: A185610 A185611 A185612 * A185614 A185615 A185616

Keyword

nonn

Author

R. H. Hardin Jan 31 2011

Status

approved