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A125411 Number of base 23 circular n-digit numbers with adjacent digits differing by 6 or less. 0

%I

%S 1,23,257,2375,25485,278903,3123797,35463983,406719021,4698846899,

%T 54583098727,636626661991,7447641422289,87321630757865,

%U 1025514521755099,12058435600011515,141915563933099549

%N Number of base 23 circular n-digit numbers with adjacent digits differing by 6 or less.

%C [Empirical] a(base,n)=a(base-1,n)+F(6) for base>=6.int(n/2)+1 and F(d) is the largest coefficient in (1+x+...+x^(2d))^n

%o (S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>6)+($[(i+1)mod N]`-$[i]`>6))

%K nonn,base

%O 0,2

%A _R. H. Hardin_, Dec 28 2006

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Last modified April 19 20:40 EDT 2019. Contains 322291 sequences. (Running on oeis4.)