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A252588 Number of (n+2)X(2+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 0 1 2 7 8 or 9 1

%I

%S 139918,2932278,78789896,2038097660,52624335712,1370922407174,

%T 35735322887730,930740577933920,24247004430527392,631716074423441952,

%U 16457840384549796568,428769370694546606722,11170597669299648915900

%N Number of (n+2)X(2+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 0 1 2 7 8 or 9

%C Column 2 of A252590

%H R. H. Hardin, <a href="/A252588/b252588.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..0..2..1..1....1..2..2..1....1..3..1..0....1..1..2..2....0..1..2..2

%e ..2..1..2..3....3..1..1..3....1..0..2..2....3..2..0..1....3..1..0..2

%e ..2..1..3..2....0..3..2..1....2..2..2..1....1..1..2..3....0..2..2..2

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 18 2014

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Last modified June 23 23:00 EDT 2021. Contains 345402 sequences. (Running on oeis4.)