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A124858 Number of base 12 circular n-digit numbers with adjacent digits differing by 2 or less. 1

%I

%S 1,12,54,198,842,3622,15984,71468,323042,1472022,6751064,31123148,

%T 144092684,669468708,3119587196,14572658668,68216250402,319893194558,

%U 1502357897232,7064711394284,33257109397452,156701323391972

%N Number of base 12 circular n-digit numbers with adjacent digits differing by 2 or less.

%C [Empirical] a(base,n)=a(base-1,n)+A005191(n+1) for base>=2.int(n/2)+1

%o (S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>2)+($[(i+1)mod N]`-$[i]`>2))

%K nonn,base

%O 0,2

%A _R. H. Hardin_, Dec 28 2006

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Last modified July 5 01:46 EDT 2020. Contains 335457 sequences. (Running on oeis4.)