A204407 - OEIS

A204407

Number of (n+2)X9 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally, vertically or nw-to-se diagonally

8916413698, 70339685822, 390091281543, 3295136296152, 24512116048486, 293407168633797, 2207029201023771, 21911437072459629, 430514154992807997, 3260720153263079196, 28863006384281816178, 493937895603239521650

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OFFSET

1,1

COMMENTS

Column 7 of A204408

LINKS

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

EXAMPLE

Some solutions for n=3

..0..1..0..2..2..0..1..1..1....2..1..2..2..0..2..1..0..0

..2..1..1..0..2..1..0..1..2....1..0..1..2..1..0..1..1..0

..2..2..2..1..0..2..1..0..2....0..1..2..0..2..1..0..2..1