A252063 Number of (n+2)X(6+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4

4569, 15593, 86642, 539063, 3510697, 23078709, 151165482, 990282975, 6500999078, 42695261900, 280354928528, 1841087610030, 12091932688086, 79421178920973, 521649705581976, 3426264313454633, 22504261859751322, 147812595120131028

Offset

1,1

Comments

Column 6 of A252065

Links

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

Example

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

Crossrefs

Sequence in context: A104947 A030471 A234677 * A068756 A252099 A252405

Adjacent sequences: A252060 A252061 A252062 * A252064 A252065 A252066

Keyword

nonn

Author

R. H. Hardin, Dec 13 2014

Status

approved