A252847 Number of (3+2)X(n+2) 0..3 arrays with every consecutive three elements in every row and diagonal having one or two distinct values, and in every column and antidiagonal having two or three distinct values, and new values 0 upwards introduced in row major order

488880, 17431462, 610768407, 21483285845, 777477410236, 28029165998950, 1007135917976846, 36272531111749239, 1306127691485449612, 47014338015317804764, 1692594358072775917398

Offset

1,1

Comments

Row 3 of A252844

Links

Table of n, a(n) for n=1..11.

Example

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

Crossrefs

Sequence in context: A163401 A022215 A335083 * A359687 A251972 A034629

Adjacent sequences: A252844 A252845 A252846 * A252848 A252849 A252850

Keyword

nonn

Author

R. H. Hardin, Dec 22 2014

Status

approved