A159878 The digits of Pi whose spellings in English contain no i's.
3, 1, 4, 1, 2, 3, 7, 3, 2, 3, 4, 2, 4, 3, 3, 3, 2, 7, 0, 2, 4, 1, 7, 1, 3, 3, 7, 1, 0, 2, 0, 7, 4, 4, 4, 2, 3, 0, 7, 1, 4, 0, 2, 2, 0, 2, 0, 3, 4, 2, 3, 4, 2, 1, 1, 7, 0, 7, 2, 1, 4, 0, 1, 3, 2, 2, 3, 0, 4, 7, 0, 3, 4, 4, 0, 0, 2, 2, 3, 1, 7, 2, 3, 4, 0, 1, 2, 4, 1, 1, 1, 7, 4, 0, 2, 4, 1, 0, 2, 7, 0, 1, 3, 2, 1
Offset: 1
Examples
Pi = 3.1415... . The digit 5 or five contains an i in the spelling. So 5 is not in the sequence.
Programs
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Mathematica
Flatten[ RealDigits[Pi, 10, 174][[1]] /. {5 -> {}, 6 -> {}, 8 -> {}, 9 -> {}}] (* Robert G. Wilson v, May 27 2009 *) -
PARI
blindpi(n) = { default(realprecision,1000); local(pi,x); pi=Vec(Str(Pi*10^99)); default(realprecision,28); for(x=1,n, if(pi[x]=="0"||pi[x]=="1"||pi[x]=="2"||pi[x]=="3"||pi[x]=="4"||pi[x]=="7", print1(pi[x]","); ); ); }
Extensions
Edited by R. J. Mathar, Apr 28 2009
Comments