A253613 Number of (n+2)X(3+2) 0..2 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

61634, 1955619, 61983527, 1985951362, 63607608304, 2039056588594, 65369339178316, 2095832672899372, 67196065694340011, 2154444488033744650, 69076069438897561178, 2214728059097013175544, 71008988237314118245588

Offset

1,1

Comments

Column 3 of A253615

Links

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

Example

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

Crossrefs

Sequence in context: A181261 A237013 A340438 * A257749 A340126 A112015

Adjacent sequences: A253610 A253611 A253612 * A253614 A253615 A253616

Keyword

nonn

Author

R. H. Hardin, Jan 05 2015

Status

approved