A068431 - OEIS

%I #15 Dec 14 2017 02:35:15

%S 1,1,1,0,0,0,1,0,1,1,0,1,1,1,1,1,1,1,0,0,0,1,0,0,1,0,0,0,1,1,0,1,1,0,

%T 1,0,0,1,1,1,0,1,1,1,1,0,1,1,0,1,0,1,0,1,0,1,0,0,1,1,1,1,0,0,1,1,1,0,

%U 0,0,0,1,1,1,0,1,1,0,0,0,0,0,1,0,1,0,0,1,0,0,0,0,0,1,1,0,1,0,1,0,1,1,1,0,1

%N Expansion of sqrt(Pi) in base 2.

%H G. C. Greubel, <a href="/A068431/b068431.txt">Table of n, a(n) for n = 1..5000</a>

%t RealDigits[Sqrt[Pi], 2, 50][[1]] (* _G. C. Greubel_, Jan 12 2017 *)

%o (PARI) concat(binary(sqrt(Pi))) \\ _Michel Marcus_, Dec 14 2017

%Y Cf. A002161.

%K base,cons,easy,nonn

%O 1,1

%A _Benoit Cloitre_, Mar 09 2002