A252333 Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 5 6 or 8 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 5 6 or 8

72899, 89296, 503439, 1835652, 13814611, 76990025, 287805377, 2229362249, 12829378336, 47542221588, 366440142125, 2116313980125, 7855741384535, 60610656095807, 349146205784944, 1296289296487504, 10025198729031327

Offset

1,1

Comments

Column 7 of A252334

Links

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

Example

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

Crossrefs

Sequence in context: A260053 A237555 A186047 * A161730 A071145 A254582

Adjacent sequences: A252330 A252331 A252332 * A252334 A252335 A252336

Keyword

nonn

Author

R. H. Hardin, Dec 16 2014

Status

approved