Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #12 Jul 25 2023 15:07:29
%S 24,294,2994,29994,299994,2999994,29999994,299999994,2999999994,
%T 29999999994,299999999994,2999999999994,29999999999994,
%U 299999999999994,2999999999999994,29999999999999994,299999999999999994
%N a(n) = k where R(k+6) = 3.
%C R(a(n)) = A086944(n).
%H Vincenzo Librandi, <a href="/A086941/b086941.txt">Table of n, a(n) for n = 1..300</a>
%F a(n) = 3*(10^n-2).
%t 3(10^Range[20]-2) (* or *) 10*Table[FromDigits[PadRight[{2},n,9]],{n,20}]+4 (* _Harvey P. Dale_, Jul 25 2023 *)
%o (Magma) [3*(10^n-2): n in [1..20]]; // _Vincenzo Librandi_, Aug 22 2011
%K nonn,easy
%O 1,1
%A _Ray Chandler_, Jul 24 2003