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%I #7 Apr 11 2021 04:29:07
%S 1,2,4,5,7,8,9,1,2,4,5,6,8,9,1,2,4,5,6,8,9,1,2,3,5,6,8,9,1,2,3,5,6,8,
%T 9,0,2,3,5,6,8,9,0,2,3,5,6,7,9,0,2,3,5,6,7,9,0,2,3,4,6,7,9,0,2,3,4,6,
%U 7,9,0,1,3,4,6,7,9,0,1,3,4,6,7,8,0,1,3,4,6,7,8,0,1,3,4,5,7,8,0,1,3,4
%N Initial decimal digit of fractional part of Pi*n, Pi=3.1415...
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/FractionalPart.html">Fractional Part</a>
%F a(n) = floor(10*Pi*n) mod 10.
%Y Cf. A094561, A094560, A022844, A000796.
%K nonn,base
%O 1,2
%A _Reinhard Zumkeller_, May 12 2004
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