A233072 Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order

365, 57122, 11235652, 2293174089, 475027244071, 98950914937033, 20656955820980290, 4315955749032401626, 902039316691285768305, 188549438666892024287013, 39413397925167802927174270

Offset

1,1

Comments

Column 7 of A233073

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=2
..0..1..0..1..1..1..0....0..0..1..1..0..1..1....0..0..1..0..1..0..0
..0..1..0..0..1..0..0....1..1..0..1..0..0..0....0..1..1..0..1..0..1

Crossrefs

Sequence in context: A275147 A275227 A281610 * A275503 A275400 A275265

Adjacent sequences: A233069 A233070 A233071 * A233073 A233074 A233075

Keyword

nonn

Author

R. H. Hardin, Dec 03 2013

Status

approved