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%I #8 Jan 28 2016 05:39:31
%S 1,1,1,3,3,11,13,13,17,23,23,73,101,101,101,101,103,103,111,113,113,
%T 117,123,123,173,323,373,1103,1103,1111,1113,1113,1117,1123,1123,1173,
%U 1323,1373,3323,3373,11373,13323,13373,17373,23323,23373,73373,101123
%N Smallest positive integer requiring at least n letters (not including hyphens) to be spelled out in English.
%C Assumes British definition of billion trillion. Also assumes 'and' is used in numbers such as 'one hundred and one'.
%Y Cf. A000916, A001166, A014388, A045494, A045495, A167509.
%K nonn,word
%O 1,4
%A _Brian Galebach_
%E Added "at least" in definition, and a cross-reference _M. F. Hasler_, Nov 18 2009