A185774 Number of (n+1)X5 0..2 arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum

26784, 1151346, 48744342, 2171002788, 95851024672, 4212755548948, 184696487434352, 8130440303768416, 357605861336206826, 15723990359863559644, 691174683753522142476, 30395002285452611004698

Offset

1,1

Comments

Column 4 of A185777

Links

R. H. Hardin, Table of n, a(n) for n = 1..39

Example

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

Crossrefs

Sequence in context: A196937 A253292 A253162 * A234158 A093180 A093181

Adjacent sequences: A185771 A185772 A185773 * A185775 A185776 A185777

Keyword

nonn

Author

R. H. Hardin Feb 03 2011

Status

approved