A252291 Number of (n+2)X(6+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 or 4

33171, 49671, 184998, 1012183, 6319654, 41069194, 268261981, 1756734380, 11536574218, 75750985228, 497258335794, 3265179833217, 21443328338771, 140817637214552, 924732972102505, 6072728887313840, 39880000477638248

Offset

1,1

Comments

Column 6 of A252293

Links

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

Example

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

Crossrefs

Sequence in context: A094889 A332200 A031660 * A203619 A170798 A043628

Adjacent sequences: A252288 A252289 A252290 * A252292 A252293 A252294

Keyword

nonn

Author

R. H. Hardin, Dec 16 2014

Status

approved