Number of base 7 n-digit numbers with adjacent digits differing by two or less.
A126394
Number of base 7 n-digit numbers with adjacent digits differing by two or less.
Terms
- a(0) =1a(1) =7a(2) =29a(3) =125a(4) =543a(5) =2363a(6) =10287a(7) =44787a(8) =194995a(9) =848979a(10) =3696331a(11) =16093291a(12) =70067867a(13) =305065387a(14) =1328210699a(15) =5782837835a(16) =25177641963a(17) =109619822123a(18) =477268896747
External references
- oeis: A126394