Number of base 18 n-digit numbers with adjacent digits differing by two or less.
A126405
Number of base 18 n-digit numbers with adjacent digits differing by two or less.
Terms
- a(0) =1a(1) =18a(2) =84a(3) =400a(4) =1918a(5) =9236a(6) =44598a(7) =215774a(8) =1045480a(9) =5071280a(10) =24620610a(11) =119613534a(12) =581435182a(13) =2827574694a(14) =13755641338a(15) =66937791112a(16) =325807794512
External references
- oeis: A126405