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A234755 Number of (n+1)X(3+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both.

%I A234755 #7 Jul 23 2025 08:24:03
%S A234755 8968,646036,41065150,2683721676,174451064914,11352560005654,
%T A234755 738613242438722,48057390396250352,3126794045459927262,
%U A234755 203441328354140321486,13236675571733137508104,861229107849713487636906
%N A234755 Number of (n+1)X(3+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both.
%C A234755 Column 3 of A234760
%H A234755 R. H. Hardin, <a href="/A234755/b234755.txt">Table of n, a(n) for n = 1..210</a>
%H A234755 R. H. Hardin, <a href="/A234755/a234755.txt">Empirical recurrence of order 55</a>
%F A234755 Empirical recurrence of order 55 (see link above)
%e A234755 Some solutions for n=1
%e A234755 ..0..0..1..2....3..0..1..1....0..0..3..3....2..2..1..0....1..3..1..0
%e A234755 ..2..1..0..3....2..1..1..0....2..1..2..3....2..1..2..2....2..2..1..2
%K A234755 nonn
%O A234755 1,1
%A A234755 _R. H. Hardin_, Dec 30 2013