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%I #4 Nov 12 2016 06:54:31
%S 0,58,2996,165408,8817738,469476315,24968293789,1327640457829,
%T 70590643428412,3753257087015148,199557480575235203,
%U 10610292692535605424,564139654771938009044,29994793111068876818904,1594795889617184754313078
%N Number of nX4 0..3 arrays with every element plus 1 mod 4 equal to some element at offset (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
%C Column 4 of A278099.
%H R. H. Hardin, <a href="/A278097/b278097.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..1..2..3. .0..1..0..3. .0..1..2..3. .0..1..2..1. .0..2..3..2
%e ..1..1..1..0. .0..2..2..2. .2..1..1..0. .3..0..3..2. .1..1..0..1
%e ..2..3..0..3. .2..3..0..1. .3..0..2..3. .3..2..3..0. .1..3..1..0
%e ..0..1..2..1. .1..2..1..0. .2..1..2..1. .1..2..2..1. .2..2..2..3
%Y Cf. A278099.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 12 2016