A207218 Number of nX5 0..2 arrays avoiding the pattern z z+1 z in any row or column

191, 36481, 4916282, 647820815, 86510224720, 11574609426324, 1547869995556777, 206971107381598775, 27675336707209804335, 3700661206901289737538, 494840604949963261796095, 66168472883795299046655248

Offset

1,1

Comments

Column 5 of A207221

Links

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

Example

Some solutions for n=4
..2..0..1..2..2....2..1..0..2..2....0..1..1..2..2....0..0..2..1..2
..1..1..1..1..2....0..0..2..1..0....2..0..1..2..0....0..1..2..0..2
..1..2..2..2..0....1..2..0..2..0....1..1..2..2..0....2..1..2..2..0
..1..0..2..2..1....2..2..2..0..2....1..1..2..2..2....1..2..2..2..1

Crossrefs

Sequence in context: A206860 A206954 A207986 * A185716 A084003 A227892

Adjacent sequences: A207215 A207216 A207217 * A207219 A207220 A207221

Keyword

nonn

Author

R. H. Hardin Feb 16 2012

Status

approved