A216028 Number of horizontal, vertical and diagonal neighbor colorings of the odd squares of an nX5 array with new integer colors introduced in row major order

1, 12, 97, 6150, 146327, 30312074, 1355988481, 609400419815, 42505520884540, 33926900616984192, 3335043669700991645

Offset

1,2

Comments

Column 5 of A216031

Links

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

Example

Some solutions for n=4
..x..0..x..1..x....x..0..x..1..x....x..0..x..1..x....x..0..x..1..x
..1..x..2..x..3....0..x..2..x..3....2..x..3..x..4....0..x..2..x..0
..x..4..x..0..x....x..4..x..0..x....x..5..x..4..x....x..2..x..0..x
..4..x..1..x..2....4..x..5..x..1....0..x..4..x..0....3..x..4..x..5

Crossrefs

Sequence in context: A128594 A166793 A041268 * A378728 A238755 A159449

Adjacent sequences: A216025 A216026 A216027 * A216029 A216030 A216031

Keyword

nonn

Author

R. H. Hardin Aug 30 2012

Status

approved