A094327 a(n) = 9 written in base n.

111111111, 1001, 100, 21, 14, 13, 12, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9

Offset: 1

Author

N. J. A. Sloane, Jun 04 2004

Keywords

• nonn
• base
• easy

Comments

The term 111....1111 should officially be called the "unary expansion", since in base 1 only the digit 0 may appear.

Links

• Index entries for linear recurrences with constant coefficients, signature (1).

Crossrefs

Cf. A001731, A063432, A035613, A094324, A094325, A094326, A094232, etc.

Programs

Mathematica

Join[{111111111},Table[FromDigits[IntegerDigits[9,n]],{n,2,90}]] (* Stefano Spezia, Nov 10 2023 *)

Formula

G.f.: x*(111111111 - 111110110*x - 901*x^2 - 79*x^3 - 7*x^4 - x^5 - x^6 - x^7 - x^8 - x^9)/(1 - x). - Stefano Spezia, Nov 10 2023