A230946 Number of (n+3)X(5+3) 0..3 white square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero

1170, 28128, 854206, 22328204, 584293702, 15744800360, 421312592376, 11212196319546, 298953751576910, 7978859331634436, 212882903519108702, 5678984462257428310, 151501248802796558630, 4041770668683019819926

Offset

1,1

Comments

Column 5 of A230949

Links

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

Example

Some solutions for n=2
..0..x..0..x..3..x..1..x....0..x..0..x..1..x..3..x....0..x..0..x..1..x..1..x
..x..1..x..1..x..0..x..2....x..1..x..3..x..2..x..0....x..1..x..3..x..2..x..2
..2..x..0..x..2..x..3..x....0..x..2..x..1..x..1..x....1..x..2..x..1..x..3..x
..x..3..x..3..x..2..x..0....x..1..x..1..x..0..x..2....x..2..x..0..x..2..x..0
..2..x..2..x..2..x..1..x....0..x..0..x..3..x..3..x....1..x..3..x..3..x..1..x

Crossrefs

Sequence in context: A043432 A065703 A202487 * A225234 A253508 A235206

Adjacent sequences: A230943 A230944 A230945 * A230947 A230948 A230949

Keyword

nonn

Author

R. H. Hardin, Nov 01 2013

Status

approved