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A251851 Number of (n+2)X(6+2) 0..3 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime 1

%I #4 Dec 09 2014 17:07:21

%S 1697028,93874605,6885655911,446202017757,30085748128093,

%T 2053961042240678,138694179420283652,9388809569393682780,

%U 636292427639546285910,43082786910890662031210,2917574335271675743919287

%N Number of (n+2)X(6+2) 0..3 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime

%C Column 6 of A251852

%H R. H. Hardin, <a href="/A251851/b251851.txt">Table of n, a(n) for n = 1..26</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 09 2014

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Last modified August 13 22:54 EDT 2024. Contains 375146 sequences. (Running on oeis4.)