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A125363 Number of base 26 circular n-digit numbers with adjacent digits differing by 4 or less. 0

%I

%S 1,26,214,1406,10814,84426,675262,5474306,44862014,370667774,

%T 3082741374,25775117966,216460107326,1824572346350,15427938607960,

%U 130804716210096,1111599418378734,9465652381274166,80745664149260704

%N Number of base 26 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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Last modified June 29 14:46 EDT 2022. Contains 354913 sequences. (Running on oeis4.)