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Search: id:A052382
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| A052382 |
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Numbers without 0 as a digit. |
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+0
10
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| 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 62, 63, 64, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 76, 77, 78, 79, 81, 82, 83, 84, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 96, 97, 98, 99, 111, 112, 113, 114
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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The entries 1 to 79 match the corresponding subsequence of A043095, but then 81, 91-98, 100, 102 etc. are only in one of the two sequences. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 13 2008]
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LINKS
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Eric Weisstein's World of Mathematics, Zerofree
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FORMULA
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a(n+1) = f(a(n)) with f(x) = 1 + if x mod 10 < 9 then x else 10*f([x/10]). [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 15 2009]
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CROSSREFS
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Cf. A004719, A052040, Different from A067251.
Sequence in context: A043095 A023804 A067251 this_sequence A055572 A052040 A020731
Adjacent sequences: A052379 A052380 A052381 this_sequence A052383 A052384 A052385
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KEYWORD
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base,easy,nonn,new
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AUTHOR
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Henry Bottomley (se16(AT)btinternet.com), Mar 13 2000
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