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A234756 Number of (n+1)X(4+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both.

%I A234756 #6 Jul 23 2025 08:24:10
%S A234756 80010,15939010,2683721676,469243923298,81436516016562,
%T A234756 14155719250115192,2459819737238954066,427468816063895627714,
%U A234756 74284713081666378716324,12909093718494739038921470,2243322903467332769441789170
%N A234756 Number of (n+1)X(4+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both.
%C A234756 Column 4 of A234760
%H A234756 R. H. Hardin, <a href="/A234756/b234756.txt">Table of n, a(n) for n = 1..210</a>
%e A234756 Some solutions for n=1
%e A234756 ..3..2..2..0..1....2..1..1..2..1....2..1..2..1..1....1..2..3..3..2
%e A234756 ..3..2..1..1..2....0..1..2..1..2....1..2..1..2..1....2..1..3..3..2
%K A234756 nonn
%O A234756 1,1
%A A234756 _R. H. Hardin_, Dec 30 2013