A055479 Powers of ten written in base 9.

1, 11, 121, 1331, 14641, 162151, 1783661, 20731371, 228145181, 2520607101, 27726678111, 316104570221, 3477151372431, 38358665206741, 433056427275251, 4763631711137761, 53511048822526471, 588621548147802281, 6585837140636825201, 73555318547116177211

Offset: 0

Author

Henry Bottomley, Jun 27 2000

Keywords

• easy
• nonn
• base

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..954

Crossrefs

Cf. A000468, A011557, A325203.

Programs

Maple

b:= proc(n) local m; m:= n; "";
      while m>0 do irem(m, 9, 'm'), % od;
      parse(cat(%))
    end:
a:= n-> b(10^n):
seq(a(n), n=0..23);  # Alois P. Heinz, Aug 23 2019

Mathematica

a[n_]:=FromDigits[IntegerDigits[10^n,9]]; Array[a,20,0] (* Stefano Spezia, Jun 01 2025 *)

Extensions

More terms from James Sellers, Jul 04 2000