A252646 Number of (6+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 3 4 6 or 7

8697, 80304, 527688, 1504636, 13960830, 101563107, 285228944, 2776390358, 21175538956, 58008774228, 586593841540, 4606891532120, 12388292691364, 128443852892522, 1028150276840443, 2729177669793740, 28762008758881404

Offset

1,1

Comments

Row 6 of A252640

Links

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

Example

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

Crossrefs

Sequence in context: A237875 A237876 A237874 * A170796 A035909 A031877

Adjacent sequences: A252643 A252644 A252645 * A252647 A252648 A252649

Keyword

nonn

Author

R. H. Hardin, Dec 19 2014

Status

approved