A209966 Number of (n+1)X6 0..3 arrays containing all values 0..3 with every 2X2 subblock having one or two distinct values, and new values 0..3 introduced in row major order

1845, 235614, 27112487, 3143493049, 351689776895, 38303320167422, 4082540189707757, 427998742911795767, 44301308191440007199, 4540404981079741824131, 461754399167951492388812

Offset

1,1

Comments

Column 5 of A209969

Links

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

Example

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

Crossrefs

Sequence in context: A290393 A251109 A236160 * A031935 A137873 A054814

Adjacent sequences: A209963 A209964 A209965 * A209967 A209968 A209969

Keyword

nonn

Author

R. H. Hardin Mar 16 2012

Status

approved