A207130 Number of nX4 0..3 arrays avoiding the pattern z z+1 z in any row or column

232, 53824, 10372917, 1981367324, 379555408075, 72730695900843, 13936149462971657, 2670326540879305294, 511665577607214468022, 98041087982933955583113, 18785814802217899809099644

Offset

1,1

Comments

Column 4 of A207134

Links

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

Example

Some solutions for n=4
..3..1..1..1....1..0..2..3....0..0..1..2....3..2..2..1....1..3..0..1
..3..3..3..1....2..1..1..0....0..3..3..0....1..2..2..0....0..0..1..1
..3..1..3..3....3..3..0..1....1..0..1..2....1..3..1..3....0..1..1..3
..3..1..1..1....0..0..3..2....1..1..0..0....1..0..3..3....3..1..3..1

Crossrefs

Sequence in context: A207578 A209088 A207053 * A125850 A139673 A252003

Adjacent sequences: A207127 A207128 A207129 * A207131 A207132 A207133

Keyword

nonn

Author

R. H. Hardin Feb 15 2012

Status

approved