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A001167 Smallest natural number requiring n words in English (as spoken in England).
(Formerly M5122 N2218)
2

%I M5122 N2218

%S 1,21,21000,101,121,1101,1121,21121,101101,101121,121121,1101121,

%T 1121121,21121121,101101121,101121121,121121121,1101121121,1121121121

%N Smallest natural number requiring n words in English (as spoken in England).

%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H Robert G. Wilson v, <a href="/A000027/a000027.txt">American English names for the numbers from 0 to 11159 without spaces or hyphens</a>.

%e One, twenty-one, twenty-one thousand, one hundred and one, one hundred and twenty-one, ...

%K nonn,word

%O 1,2

%A _N. J. A. Sloane_

%E Edited by _N. J. A. Sloane_, Jul 05 2008

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Last modified September 21 13:37 EDT 2019. Contains 327253 sequences. (Running on oeis4.)