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Search: id:A098752
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| A098752 |
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a(n+1) = least number > a(n) that begins with the last digit of a(n) and doesn't end with 0. |
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+0
1
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| 1, 11, 12, 21, 101, 102, 201, 1001, 1002, 2001, 10001, 10002, 20001, 100001, 100002, 200001, 1000001, 1000002, 2000001, 10000001, 10000002, 20000001, 100000001, 100000002, 200000001, 1000000001, 1000000002, 2000000001, 10000000001
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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a(n) must be chosen with nonzero rightmost digit.
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FORMULA
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For n=0 mod 3, a(n) = 10^(n/3) + 2; for n=1 mod 3, n>1, a(n) = 2*10^((n-1)/3) + 1; for n=2 mod 3, a(n) = 10^((n+1)/3) + 1. - Sam Alexander (amnalexander(AT)yahoo.com), Jan 04 2005
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CROSSREFS
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Cf. A076654.
Cf. A101233.
Sequence in context: A131363 A089185 A098754 this_sequence A084855 A101233 A118512
Adjacent sequences: A098749 A098750 A098751 this_sequence A098753 A098754 A098755
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KEYWORD
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base,easy,nonn
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AUTHOR
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Eric Angelini (eric.angelini(AT)kntv.be), Oct 01 2004
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EXTENSIONS
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More terms from Sam Alexander (amnalexander(AT)yahoo.com), Jan 04 2005
More terms from David Wasserman (dwasserm(AT)earthlink.net), Feb 26 2008
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