A252051 Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum not 1 3 6 or 8 and every diagonal and antidiagonal sum 1 3 6 or 8

7642, 10324, 17166, 29180, 112542, 233342, 398502, 1545586, 3493324, 6364926, 25030764, 55982864, 107529180, 434690496, 981158992, 1847050606, 7975660404, 17661934362, 33398453950, 148936808798, 330139202194, 605355952468

Offset

1,1

Comments

Column 6 of A252053

Links

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

R. H. Hardin, Empirical recurrence of order 71

Formula

Empirical recurrence of order 71 (see link above)

Example

Some solutions for n=4
..0..1..1..0..3..2..2..1....2..1..2..1..2..1..2..1....3..1..1..3..1..1..0..1
..0..0..2..2..1..1..3..0....0..1..3..1..0..1..3..1....1..2..2..1..2..2..1..2
..2..1..1..3..0..2..2..1....3..2..0..2..3..2..0..2....0..1..1..3..1..1..3..1
..0..3..2..2..1..1..0..3....1..2..1..2..1..2..1..2....3..1..1..0..1..1..3..1
..2..1..1..0..3..2..2..1....1..0..1..3..1..3..1..3....1..2..2..1..2..2..1..2
..3..0..2..2..1..1..0..3....2..0..2..0..2..0..2..0....0..1..1..3..1..1..3..1

Crossrefs

Sequence in context: A189551 A235907 A252968 * A038011 A205040 A252406

Adjacent sequences: A252048 A252049 A252050 * A252052 A252053 A252054

Keyword

nonn

Author

R. H. Hardin, Dec 13 2014

Status

approved