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Number of (n+2)X(1+2) 0..2 arrays with some row, column, diagonal or antidiagonal in every 3X3 subblock summing to 3
1

%I #5 Dec 06 2014 09:18:34

%S 17511,429399,10560127,259228149,6364650023,156279294337,

%T 3837213542225,94217351705611,2313377685724183,56801788011413551,

%U 1394689284588080653,34244666060924691341,840830398251185804161,20645427139891516724819

%N Number of (n+2)X(1+2) 0..2 arrays with some row, column, diagonal or antidiagonal in every 3X3 subblock summing to 3

%C Column 1 of A251641

%H R. H. Hardin, <a href="/A251638/b251638.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 06 2014