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 A159451 Number of numbers less than n, that are contained in n written as English number names. 3
 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 3, 3, 3, 3, 2, 3, 3, 3, 1, 3, 3, 3, 3, 3, 3, 2, 3, 3, 1, 3, 3, 3, 3, 3, 3, 3, 2, 3, 1, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 2, 3, 3, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,22 COMMENTS a(A159452(n)) = 0; a(A159453(n)) = n and a(m) <> n for m < A159453(n). LINKS R. Zumkeller, Table of n, a(n) for n = 0..10000 Robert G. Wilson v, English names for the numbers from 0 to 11159 without spaces or hyphens EXAMPLE n=19->nineteen: a(19) = #{nine} = 1; n=20->twenty: a(20) = #{} = 0; n=21->twentyone: a(21) = #{one, twenty} = 2. CROSSREFS Sequence in context: A055178 A174847 A215887 * A103159 A063056 A174835 Adjacent sequences:  A159448 A159449 A159450 * A159452 A159453 A159454 KEYWORD nonn,word AUTHOR Reinhard Zumkeller, Apr 12 2009 STATUS approved

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