Search: id:A134629
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%I A134629
%S A134629 1,0,3,11,15,13,17,24,23,73,101,104,103,111,115,113,117,124,123,173,323,
%T A134629 373,1104,1103,1111,1115,1113,1117,1124,1123,1173,1323,1373,3323,3373,
%U A134629 11373
%N A134629 Least natural number in English which require n letters to spell excluding 
               spaces and hyphens. The inverse of A005589.
%C A134629 Variant of A080777. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), 
               Dec 13 2008]
%H A134629 Landon Curt Noll, <a href="http://www.isthe.com/chongo/tech/math/number/
               number.html">The English Name of a Number</a>.
%H A134629 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               Number.html">Number</a>.
%e A134629 a(3)=1 "one", a(4)=0 "zero", a(5)=3 "three", a(6)=11 "eleven", a(7)=15 
               "fifteen", etc.
%Y A134629 Cf. A005589.
%Y A134629 Sequence in context: A143029 A022123 A132363 this_sequence A030715 A056247 
               A039275
%Y A134629 Adjacent sequences: A134626 A134627 A134628 this_sequence A134630 A134631 
               A134632
%K A134629 nonn,word
%O A134629 3,3
%A A134629 Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 04 2007

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