Base-7 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,1.

A033125

Base-7 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,1.

Terms

    a(0) =1a(1) =7a(2) =50a(3) =351a(4) =2457a(5) =17200a(6) =120401a(7) =842807a(8) =5899650a(9) =41297551a(10) =289082857a(11) =2023580000a(12) =14165060001a(13) =99155420007a(14) =694087940050

External references