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%I #4 Dec 17 2014 09:59:22
%S 426,1224,3302,6231,21819,63428,122653,433272,1264088,2446973,8647751,
%T 25240256,48858289,172693010,504163906,975786403,3449387269,
%U 10072591598,19492346563,68913269330,201282072654,389463616027,1377074355675
%N Number of (4+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 2 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 2 3 4 6 or 7
%C Row 4 of A252407
%H R. H. Hardin, <a href="/A252411/b252411.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 41*a(n-3) -427*a(n-6) -92*a(n-9) +4948*a(n-12) -4734*a(n-15) -16460*a(n-18) +22444*a(n-21) +22257*a(n-24) -37919*a(n-27) -8433*a(n-30) +18472*a(n-33) +420*a(n-36) -516*a(n-39) for n>41
%e Some solutions for n=4
%e ..3..2..2..3..2..2....3..2..2..0..2..2....3..2..2..3..2..2....3..2..2..3..2..2
%e ..3..1..0..3..1..0....2..3..2..2..3..2....3..1..0..3..1..3....3..1..3..0..1..3
%e ..2..2..3..2..2..3....3..3..1..3..3..1....2..2..3..2..2..0....2..2..3..2..2..0
%e ..3..2..2..3..2..2....3..2..2..0..2..2....3..2..2..3..2..2....3..2..2..3..2..2
%e ..0..1..3..3..1..3....2..3..2..2..3..2....0..1..3..3..1..3....3..1..3..3..1..3
%e ..2..2..0..2..2..3....0..3..1..3..0..1....2..2..0..2..2..0....2..2..0..2..2..3
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 17 2014
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