Search: id:A126479
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%I A126479
%S A126479 1,11,65,399,2473,15381,95757,596341,3714153,23133309,144085281,
%T A126479 897434333,5589669241,34815260805,216846906193,1350631326317,
%U A126479 8412409590489,52396708044853,326352989158113,2032690173290461
%N A126479 Number of base 11 n-digit numbers with adjacent digits differing by three 
               or less.
%C A126479 [Empirical] a(base,n)=a(base-1,n)+7^(n-1) for base>=3n-2; a(base,n)=a(base-1,
               n)+7^(n-1)-2 when base=3n-3
%o A126479 (S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-2](($[i]`-$[i+1]`>
               3)+($[i+1]`-$[i]`>3))
%Y A126479 Cf. Base 11 differing by two or less A126398, one or less A126365.
%Y A126479 Sequence in context: A036601 A125321 A054490 this_sequence A139611 A154617 
               A063842
%Y A126479 Adjacent sequences: A126476 A126477 A126478 this_sequence A126480 A126481 
               A126482
%K A126479 nonn,base
%O A126479 0,2
%A A126479 Ron Hardin (rhhardin(AT)att.net), Dec 27 2006

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