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%I #7 Mar 31 2012 12:35:01
%S 1,29,191,989,6007,36899,232283,1481187,9545655,62011583,405450761,
%T 2664933377,17592909979,116573138347,774886954865,5165028310229,
%U 34510517162935,231073883699423,1550128124848997,10416325061012499
%N Number of base 29 circular n-digit numbers with adjacent digits differing by 3 or less.
%C [Empirical] a(base,n)=a(base-1,n)+A025012(n+1) for base>=3.int(n/2)+1
%o (S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>3)+($[(i+1)mod N]`-$[i]`>3))
%K nonn,base
%O 0,2
%A _R. H. Hardin_, Dec 28 2006
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