Search: id:A071791
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%I A071791
%S A071791 2,5,7,0,2,5,7,0,3,5,8,0,3,5,8,1,3,6,8,1,3,6,9,1,4,6,9,1,4,7,9,2,4,7,9,
%T A071791 2,5,7,0,2,5,7,0,3,5,8,0,3,5,8,1,3,6,8,1,3,6,9,1,4,6,9,1,4,7,9,2,4,7,9,
%U A071791 2,5,7,0,2,5,7,0,3,5,8,0,3,5,8,1,3,6,8,1,3,6,9,1,4,6,9,1,4,7
%N A071791 Decimal expansion of the third (of 10) decimal selvage numbers; the n-th 
               digit of a decimal selvage number, x, is equal to the tenths digit 
               of n*x.
%C A071791 The selvage number, x = sum{k=1..inf} a(k)/10^k, is a normal number, 
               but it is not known whether or not x is irrational. Is this sequence 
               periodic?
%F A071791 a(n) = floor[10*(n*x)] (Mod 10), where x = sum{k=1..inf} a(k)/10^k.
%e A071791 a(6) = 5 since floor(10*(6*x)) = 5, x=.25702570358035813681369146914792479257025703580358...
%Y A071791 Sequence in context: A111190 A009376 A025123 this_sequence A021393 A010589 
               A024715
%Y A071791 Adjacent sequences: A071788 A071789 A071790 this_sequence A071792 A071793 
               A071794
%K A071791 cons,nice,nonn
%O A071791 0,1
%A A071791 Paul D. Hanna (pauldhanna(AT)juno.com), Jun 06 2002

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