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%I #7 Mar 31 2012 12:35:01
%S 1,14,106,674,4946,37014,283330,2196782,17189858,135356102,1070440026,
%T 8490518798,67481635442,537075903014,4278507764938,34105515215934,
%U 271984108754114,2169645089403350,17310883131943930,138136179160503278
%N Number of base 14 circular n-digit numbers with adjacent digits differing by 4 or less.
%C [Empirical] a(base,n)=a(base-1,n)+A025014(n+1) for base>=4.int(n/2)+1
%o (S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>4)+($[(i+1)mod N]`-$[i]`>4))
%K nonn,base
%O 0,2
%A _R. H. Hardin_, Dec 28 2006
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