A210411 Number of (n+1)X7 0..3 arrays with every 2X2 subblock having three or four distinct values, and new values 0..3 introduced in row major order

1176192, 2633043200, 5718722907600, 12464482425454304, 27156404472228366416, 59168572189285825092176, 128916198765144572103220336, 280882175302904664142569808512, 611985080884296483153754366288624

Offset

1,1

Comments

Column 6 of A210413

Links

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

Example

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

Crossrefs

Sequence in context: A114677 A172591 A250962 * A204777 A236718 A189408

Adjacent sequences: A210408 A210409 A210410 * A210412 A210413 A210414

Keyword

nonn

Author

R. H. Hardin Mar 21 2012

Status

approved