A204966 Number of (n+2)X5 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..1 introduced in row major order

6086, 107004, 1858301, 31837899, 547910909, 9424549410, 162106684241, 2788440262671, 47963836568225, 825026652543724, 14191301697133930, 244104810511870454, 4198851162609132514, 72224512960642806018

Offset

1,1

Comments

Column 3 of A204971

Links

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

Example

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

Crossrefs

Sequence in context: A274360 A025515 A031576 * A252329 A156200 A236824

Adjacent sequences: A204963 A204964 A204965 * A204967 A204968 A204969

Keyword

nonn

Author

R. H. Hardin Jan 21 2012

Status

approved