This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A222130 #15 Mar 26 2013 03:56:51 %S A222130 4,1,3,2,9,2,1,1,6,1,0,1,5,9,4,3,3,6,6,2,6,6,2,8,3,9,4,2,7,6,6,9,7,5, %T A222130 6,4,9,8,5,5,9,0,6,8,7,0,8,3,5,4,5,0,8,2,8,7,1,9,7,6,6,4,2,4,7,7,2,3, %U A222130 8,9,0,6,3,0,3,4,8,5,5,4,3,3,5,6,4,2,8 %N A222130 Decimal expansion of the real part of Pi^i, where i=sqrt(-1). %H A222130 Vincenzo Librandi, <a href="/A222130/b222130.txt">Table of n, a(n) for n = 0..5000</a> %F A222130 Equals cos(log(Pi)) = (Pi^i+1/Pi^i)/2. %e A222130 0.41329211610159433662662839427669756498559068708354508287197664247... %t A222130 RealDigits[Re[Pi^I], 10, 90][[1]] (* or *) RealDigits[Cos[Log[Pi]], 10, 90][[1]] %o A222130 (Maxima) fpprec:90; ev(bfloat(realpart(%pi^%i))); %Y A222130 Cf. A053510, A049470 (real part of e^i), A222131 (imaginary part of Pi^i). %K A222130 nonn,cons %O A222130 0,1 %A A222130 _Bruno Berselli_, Feb 08 2013