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Search: id:A134629
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| A134629 |
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Least natural number in English which require n letters to spell excluding spaces and hyphens. The inverse of A005589. |
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+0
6
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| 1, 0, 3, 11, 15, 13, 17, 24, 23, 73, 101, 104, 103, 111, 115, 113, 117, 124, 123, 173, 323, 373, 1104, 1103, 1111, 1115, 1113, 1117, 1124, 1123, 1173, 1323, 1373, 3323, 3373, 11373
(list; graph; listen)
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OFFSET
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3,3
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COMMENT
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Variant of A080777. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 13 2008]
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LINKS
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Landon Curt Noll, The English Name of a Number.
Eric Weisstein's World of Mathematics, Number.
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EXAMPLE
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a(3)=1 "one", a(4)=0 "zero", a(5)=3 "three", a(6)=11 "eleven", a(7)=15 "fifteen", etc.
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CROSSREFS
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Cf. A005589.
Sequence in context: A143029 A022123 A132363 this_sequence A030715 A056247 A039275
Adjacent sequences: A134626 A134627 A134628 this_sequence A134630 A134631 A134632
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KEYWORD
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nonn,word
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 04 2007
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