Number of base 9 n-digit numbers with adjacent digits differing by three or less.
A126477
Number of base 9 n-digit numbers with adjacent digits differing by three or less.
Terms
- a(0) =1a(1) =9a(2) =51a(3) =301a(4) =1787a(5) =10619a(6) =63111a(7) =375091a(8) =2229307a(9) =13249619a(10) =78747531a(11) =468026571a(12) =2781660187a(13) =16532466059a(14) =98258743211a(15) =583989138891
External references
- oeis: A126477