A252907 Number of (n+2)X(3+2) 0..3 arrays with every consecutive three elements in every row and column having exactly 2 distinct values, in every diagonal 1 or 2 distinct values, in every antidiagonal 2 or 3 distinct values, and new values 0 upwards introduced in row major order

5567, 42647, 361750, 3321526, 31101826, 293166855, 2779386634, 26422127321, 251365182149, 2393376335753, 22799665288410, 217194895643722, 2069420807703495, 19719401115769839, 187896935466387368

Offset

1,1

Comments

Column 3 of A252910

Links

R. H. Hardin, Table of n, a(n) for n = 1..98

Example

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

Crossrefs

Sequence in context: A045104 A043512 A167281 * A300818 A252154 A360218

Adjacent sequences: A252904 A252905 A252906 * A252908 A252909 A252910

Keyword

nonn

Author

R. H. Hardin, Dec 24 2014

Status

approved