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%I #21 Jan 30 2016 07:02:20
%S 1,4,7,11,15,18,21,24,27,73,101,104,107,111,115,118,121,124,127,173,
%T 323,373,1104,1107,1111,1115,1118,1121,1124,1127,1173,1323,1373,3323,
%U 3373,11373,13323,13373,17373,23323,23373,73373,101373,103323,103373,111373
%N a(n) is the smallest positive integer > a(n-1) with exactly n letters when spelled in English.
%C This uses the conventions that "and" is never used and two-digit numbers are not used before "hundred". The sequence is labeled "finite" because there is no widely accepted naming convention for arbitrarily large numbers. - _David Wasserman_, Dec 20 2004
%H Andrew Bolt et al., <a href="https://groups.google.com/forum/?hl=en&fromgroups#!topic/rec.puzzles/22qcHJQJEOU">Maths fun</a>, rec.puzzles group.
%H jaysmith et al., <a href="https://groups.google.com/forum/?hl=en&fromgroups#!topic/rec.puzzles/KpvBiiNx0i0">Number sequence - spot the pattern</a>, rec.puzzles group.
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/English_numerals">English numerals</a>
%e a(5) = 7 because 'seven' has 5 letters.
%Y Cf. A080777.
%K easy,nonn,word,fini
%O 3,2
%A James Ong (blackshadowshade(AT)yahoo.com.au), Jun 27 2003
%E More terms from _David Wasserman_, Dec 20 2004
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