|
%I #6 Dec 17 2014 12:49:22
%S 747,2643,11334,48170,203320,863351,3675259,15672575,66857788,
%T 285055325,1215600193,5185581482,22120635088,94356110010,402488550644,
%U 1716913274642,7323917433852,31241941469786,133270541834839
%N Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 4 6 or 7
%C Column 4 of A252457
%H R. H. Hardin, <a href="/A252453/b252453.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A252453/a252453.txt">Empirical recurrence of order 69</a>
%F Empirical recurrence of order 69 (see link above)
%e Some solutions for n=4
%e ..3..2..3..3..3..3....3..1..1..1..1..1....3..1..1..1..1..1....1..3..1..1..3..1
%e ..3..3..3..3..2..3....1..1..3..1..1..1....1..1..3..1..1..1....1..3..1..1..1..3
%e ..2..3..3..3..3..3....1..1..1..1..1..1....1..1..1..1..3..1....1..3..1..1..1..1
%e ..3..3..3..3..3..3....1..1..1..1..1..3....1..1..1..1..1..1....1..3..1..1..1..1
%e ..3..3..3..3..3..3....1..1..1..3..1..1....1..1..1..3..1..1....1..3..1..1..1..3
%e ..3..2..3..3..2..3....1..3..1..1..1..1....1..1..1..1..1..1....1..3..1..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 17 2014
| 