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A253306 Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally 0

%I #4 Dec 30 2014 08:22:47

%S 81,1752,64560,516928,16534784,45899840,2762956252,2818822376,

%T 415652059980,163088180880,58352627572340,9240725160960,

%U 7903320200155840,527212884271456,1048584505666800960

%N Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally

%C Diagonal of A253314

%e Some solutions for n=3

%e ..2..2..0..0....2..0..0..0....1..1..2..1....1..1..0..0....2..0..0..2

%e ..2..0..0..1....0..0..0..1....0..2..0..2....2..0..2..1....2..1..0..2

%e ..1..2..0..0....1..2..0..0....1..0..2..0....1..2..0..2....0..0..2..0

%e ..2..0..1..2....1..0..0..0....0..0..1..0....0..0..0..1....2..0..1..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 30 2014

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Last modified June 21 14:49 EDT 2024. Contains 373548 sequences. (Running on oeis4.)