A186010 1/8192 the number of (n+2)X(n+2) 0..3 arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace

32, 301296, 28935691550, 28418702031939836, 283178106619218127407323, 28654609946372050600800562086387

Offset

1,1

Comments

Diagonal of A186019

Links

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

Example

Some solutions for 4X4
..2..0..0..0....0..0..0..0....2..0..0..0....0..0..0..0....2..0..0..0
..0..2..0..0....0..0..0..0....0..2..0..0....0..0..0..0....0..2..0..0
..0..1..2..2....1..2..1..2....0..2..3..1....2..2..0..1....2..2..0..1
..1..3..2..0....1..2..2..0....1..0..1..0....3..3..2..0....1..2..0..3

Crossrefs

Sequence in context: A094814 A017297 A228427 * A017417 A286179 A017549

Adjacent sequences: A186007 A186008 A186009 * A186011 A186012 A186013

Keyword

nonn

Author

R. H. Hardin Feb 10 2011

Status

approved