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A251884 Number of (n+2)X(7+2) 0..4 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime 1

%I #4 Dec 10 2014 10:05:14

%S 676969,2472269,8113568,64083601,513228578,3186483082,27379339268,

%T 220952120769,1384444723597,11996291910088,97046849387176,

%U 608493163905192,5283161758946533,42750489265921469,268070866872601358

%N Number of (n+2)X(7+2) 0..4 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime

%C Column 7 of A251885

%H R. H. Hardin, <a href="/A251884/b251884.txt">Table of n, a(n) for n = 1..76</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 10 2014

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Last modified April 25 13:02 EDT 2024. Contains 371969 sequences. (Running on oeis4.)