A183593 1/24 the number of (n+1)X9 0..3 arrays with every 2X2 subblock containing exactly three distinct values

36013568, 142681644568, 552606468835138, 2147583158143435461, 8342194020938064158034, 32407200636226196823851489

Offset

1,1

Comments

Column 8 of A183594

Links

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

Example

Some solutions with a(1,1)=0 for 3X9
..0..0..0..0..2..3..2..2..0....0..0..0..0..2..3..1..1..3
..2..1..2..1..0..2..1..3..3....2..1..2..1..0..2..3..2..1
..0..0..0..0..2..3..2..1..0....0..0..0..0..2..3..0..0..1

Crossrefs

Sequence in context: A258955 A037252 A064586 * A183755 A105296 A362964

Adjacent sequences: A183590 A183591 A183592 * A183594 A183595 A183596

Keyword

nonn

Author

R. H. Hardin Jan 05 2011

Status

approved