The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A126527 Number of base 32 n-digit numbers with adjacent digits differing by four or less. 1

%I #7 Mar 31 2012 12:35:06

%S 1,32,268,2292,19748,170904,1483284,12899556,112350184,979640156,

%T 8549531716,74665238648,652426700120,5703387501520,49875030912772,

%U 436266613941484,3816936851122500,33400491065984904,292314430831005104

%N Number of base 32 n-digit numbers with adjacent digits differing by four or less.

%C [Empirical] a(base,n)=a(base-1,n)+9^(n-1) for base>=4n-3; a(base,n)=a(base-1,n)+9^(n-1)-2 when base=4n-4

%o (S/R) stvar \$[N]:(0..M-1) init \$[]:=0 asgn \$[]->{*} kill +[i in 0..N-2]((\$[i]`-\$[i+1]`>4)+(\$[i+1]`-\$[i]`>4))

%Y Cf. Base 32 differing by three or less A126500, two or less A126419, one or less A126386.

%K nonn,base

%O 0,2

%A _R. H. Hardin_, Dec 28 2006

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 4 20:53 EDT 2023. Contains 365888 sequences. (Running on oeis4.)