A252351 - OEIS

%I #4 Dec 16 2014 20:48:22

%S 12670,66229,294801,1312020,9477253,49182987,249626459,1786788265,

%T 9363179389,48251359131,344793840705,1802242635859,9325197489623,

%U 66803148741785,348122496835947,1803145412715731,12973455904569109

%N Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 3 5 6 or 8 and every 3X3 diagonal and antidiagonal sum equal to 0 3 5 6 or 8

%C Column 7 of A252352

%H R. H. Hardin, <a href="/A252351/b252351.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 16 2014