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%I #6 Mar 15 2023 11:01:27
%S 30660,1546388,79435700,4076346506,209227480445,10737439549324,
%T 551105575414582,28284020719761730,1451755964141843980,
%U 74511926985325716444,3824363300738515268818,196285032021223602980618
%N Number of (n+1) X (3+1) 0..3 arrays colored with the maximum plus the upper median minus the lower median of every 2 X 2 subblock.
%C Column 3 of A236127.
%H R. H. Hardin, <a href="/A236126/b236126.txt">Table of n, a(n) for n = 1..72</a>
%e Some solutions for n=1
%e ..1..3..0..2....1..0..2..1....0..2..0..3....1..3..2..1....1..0..0..2
%e ..2..3..3..1....0..0..3..1....3..3..0..3....3..1..3..2....1..3..1..0
%Y Cf. A236127.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 19 2014