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A252036 Number of (n+2)X(4+2) 0..4 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime 1

%I #4 Dec 12 2014 21:26:56

%S 112929,183494,85570,242893,958171,3353508,10165927,43093018,

%T 160833703,479755164,2129630164,8304035822,24338771563,112393455254,

%U 453850241919,1310003801065,6253138371548,25945878433273,74044064461017

%N Number of (n+2)X(4+2) 0..4 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime

%C Column 4 of A252039

%H R. H. Hardin, <a href="/A252036/b252036.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

%e ..1..1..4..1..1..2....4..0..4..4..0..4....4..3..3..4..1..3....3..3..4..3..3..4

%e ..3..1..2..1..1..4....1..2..1..1..2..3....4..3..1..4..3..1....0..0..1..0..0..1

%e ..2..2..0..2..2..0....1..2..1..1..2..1....1..0..0..1..0..0....3..3..4..3..3..4

%e ..3..1..2..1..1..2....2..0..2..2..0..4....4..3..3..4..3..3....3..3..4..3..1..4

%e ..1..3..4..1..1..2....1..4..1..1..2..1....4..3..3..4..1..1....0..0..1..0..0..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 12 2014

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Last modified April 16 13:49 EDT 2024. Contains 371723 sequences. (Running on oeis4.)