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A252085 Number of (n+2)X(5+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 3 or 4 1

%I #4 Dec 13 2014 20:51:26

%S 1591,7089,38374,199064,1034546,5474209,28883234,152360177,805901591,

%T 4260742020,22510973975,118986810308,629109658471,3325846713536,

%U 17580932671512,92938880640092,491326132742939,2597415182172287

%N Number of (n+2)X(5+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 3 or 4

%C Column 5 of A252088

%H R. H. Hardin, <a href="/A252085/b252085.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 13 2014

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Last modified July 15 17:56 EDT 2024. Contains 374333 sequences. (Running on oeis4.)