login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

Decimal repunits written in base 3.
6

%I #18 Apr 27 2022 19:47:33

%S 0,1,102,11010,1112011,120020112,12122102020,2002110011021,

%T 202220111120122,21202002000210100,2212102202021220101,

%U 1001200100111221000202,101121210112011021021110,10221012222020120200202111,1110100012201102210221120212

%N Decimal repunits written in base 3.

%F a(n) = A007089(A002275(n)).

%F a(n) = (A055474(n) - 1)/100. - _Hugo Pfoertner_, Apr 26 2022

%o (PARI) a(n) = fromdigits(digits((10^n-1)/9, 3));

%Y Cf. A002275, A291962, A353143, A353144, A353145, A353146, A353147, A353148.

%Y Cf. A003462, A007089, A055474.

%K nonn,base,easy

%O 0,3

%A _Seiichi Manyama_, Apr 26 2022