A215923 Number of diagonal and antidiagonal neighbor colorings of the odd squares of an nX7 array with new integer colors introduced in row major order

5, 203, 12840, 14050312, 4044766240, 18383354944364, 12954733199158688, 152834703746357948488, 204451724239460493425216, 4971673449387903153569761420, 10980920102796579166081443367088

Offset

1,1

Comments

Column 7 of A215924

Links

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

Example

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

Crossrefs

Sequence in context: A196587 A197044 A216615 * A208468 A070906 A208052

Adjacent sequences: A215920 A215921 A215922 * A215924 A215925 A215926

Keyword

nonn

Author

R. H. Hardin Aug 27 2012

Status

approved