A251639 Number of (n+2)X(2+2) 0..2 arrays with some row, column, diagonal or antidiagonal in every 3X3 subblock summing to 3

429399, 29245729, 2000922455, 136454122643, 9309440987703, 635207928799359, 43339294278011643, 2956993750309090701, 201753135616556184199, 13765424797557082160031, 939201967205489895161245

Offset

1,1

Comments

Column 2 of A251641

Links

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

Example

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

Crossrefs

Sequence in context: A209794 A234448 A269798 * A051595 A234857 A186593

Adjacent sequences: A251636 A251637 A251638 * A251640 A251641 A251642

Keyword

nonn

Author

R. H. Hardin, Dec 06 2014

Status

approved