A054277 - OEIS

%I #13 Mar 09 2015 11:38:29

%S 3,7,28,85,89,95,109,121,123,126,161,191,196,198,201,202,209,218,224,

%T 233,244,260,267,268,284,304,310,319,322,356,357,371,396,398,400,408,

%U 414,416,428,429,430,484,500,506

%N Positions of 1's in the decimal expansion of exp(1).

%H Vincenzo Librandi, <a href="/A054277/b054277.txt">Table of n, a(n) for n = 1..1000</a>

%t Flatten[Position[RealDigits[Exp[1],10,600][[1]],1]]  (* _Harvey P. Dale_, Mar 23 2011 *)

%K nonn,base

%O 1,1

%A _Simon Plouffe_, Feb 20 2000