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A251455 Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock summing to a prime 1

%I #4 Dec 02 2014 18:33:52

%S 47874,2922936,172965058,10325081994,614533146306,36647302556482,

%T 2183158464447536,130169302479945344,7756819425049401366,

%U 462457171330625912018,27561824737030754853020,1643128075181895650348806

%N Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock summing to a prime

%C Column 4 of A251459

%H R. H. Hardin, <a href="/A251455/b251455.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 02 2014

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)