A252120 Number of (n+2)X(3+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 6

30699048, 6987308056, 1675983810394, 373564978470681, 84633516398482856, 19299613230942355437, 4382319140211560837154, 995465171810983827335188, 226255499511711746801959040, 51411780160644011446947859414

Offset

1,1

Comments

Column 3 of A252121

Links

R. H. Hardin, Table of n, a(n) for n = 1..25

Example

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

Crossrefs

Sequence in context: A263644 A283619 A156420 * A297447 A205272 A261986

Adjacent sequences: A252117 A252118 A252119 * A252121 A252122 A252123

Keyword

nonn

Author

R. H. Hardin, Dec 14 2014

Status

approved