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%I #6 May 24 2024 13:20:24
%S 6398,194586,5783416,172965058,5162094982,154267520858,4606843590302,
%T 137657116629832,4111638505603610,122852558520079282,
%U 3669798382143064858,109646194005440865702,3275476445946738392702,97861845165754237937150
%N Number of (n+1) X (3+1) 0..3 arrays with every 2 X 2 subblock summing to a prime.
%C Column 3 of A251459.
%H R. H. Hardin, <a href="/A251454/b251454.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A251454/a251454.txt">Empirical recurrence of order 99</a>
%F Empirical recurrence of order 99 (see link above).
%e Some solutions for n=2
%e ..0..1..1..0....0..0..3..0....0..2..3..0....0..0..1..1....0..3..2..1
%e ..3..1..0..1....1..1..1..1....1..2..0..0....1..1..1..2....2..0..0..2
%e ..0..3..1..1....2..3..2..3....3..1..2..3....1..2..3..1....0..0..2..1
%Y Cf. A251459.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 02 2014
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