%I #7 Mar 31 2012 12:35:02
%S 1,32,268,1772,13748,108132,871228,7113068,58698164,488329172,
%T 4089121128,34423417280,291070095356,2470369205804,21033518369320,
%U 179580640999392,1536920470892852,13181385142142708,113261618364481612
%N Number of base 32 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