A210401 Number of (n+1)X6 0..3 arrays with every 2X2 subblock having one or three distinct values, and new values 0..3 introduced in row major order

48689, 15072359, 4631193134, 1424263182001, 437975212393770, 134683271058638241, 41416871324907300274, 12736232904829456441673, 3916559147436595608586666, 1204393458629921029588921777

Offset

1,1

Comments

Column 5 of A210404

Links

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

Example

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

Crossrefs

Sequence in context: A173780 A252444 A237146 * A067869 A175278 A336189

Adjacent sequences: A210398 A210399 A210400 * A210402 A210403 A210404

Keyword

nonn

Author

R. H. Hardin Mar 21 2012

Status

approved