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 A254546 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 0

%I #3 Feb 01 2015 12:20:39

%S 512,9292,129677,1193965,8246808,64180262,479026957,2511052025,

%T 21188684994,181128766926,982298722361,8581995931854,74325711093901,

%U 405810151566882,3553109063296745

%N Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

%C Diagonal of A254553

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 01 2015

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Last modified May 29 22:39 EDT 2023. Contains 363044 sequences. (Running on oeis4.)