The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #8 Mar 31 2012 12:35:02
%S 1,25,283,2629,28423,313205,3533323,40410633,467043615,5439818107,
%T 63736363043,750192541937,8861195897479,104954282605873,
%U 1245741516044273,14810409132947099,176301253742737935
%N Number of base 25 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