A252292 Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 or 4

79607, 126017, 596945, 4209322, 33076723, 268261981, 2178722578, 17710640816, 144353942697, 1176494729579, 9584621728108, 78098636376055, 636496898263345, 5187423126894299, 42275672114526874, 344528964136996607

Offset

1,1

Comments

Column 7 of A252293

Links

R. H. Hardin, Table of n, a(n) for n = 1..150

Example

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

Crossrefs

Sequence in context: A159713 A251208 A103873 * A238177 A237172 A146324

Adjacent sequences: A252289 A252290 A252291 * A252293 A252294 A252295

Keyword

nonn

Author

R. H. Hardin, Dec 16 2014

Status

approved