A210396 - OEIS

A210396

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

7, 1316, 1596154, 11066406572, 437975212393770, 98959148496365005996, 127648944977287507883659858, 940014634186299364055616416384316

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Diagonal of A210404

LINKS

EXAMPLE

Some solutions for n=4

..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..1..0..0

..1..2..3..2..3....1..2..3..2..3....1..2..1..3..1....2..1..3..0..0

..0..2..0..3..0....0..2..1..1..1....3..2..0..0..3....0..0..1..1..2

..1..2..3..2..3....2..1..3..2..3....1..1..0..0..1....0..0..2..3..1

..1..3..1..3..0....3..1..0..2..0....0..2..0..0..3....3..2..3..1..2

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved