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 A251878 Number of (n+2)X(1+2) 0..4 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime 1

%I

%S 5495,11492,20025,49529,117744,256604,676969,1694929,3850641,10168955,

%T 25657626,58789576,154405779,390732438,900368454,2349009411,

%U 5954768481,13795315565,35777536598,90799627321,211393940417,545320046544

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

%C Column 1 of A251885

%H R. H. Hardin, <a href="/A251878/b251878.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 10 2014

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Last modified April 19 00:03 EDT 2021. Contains 343098 sequences. (Running on oeis4.)