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Search: id:A064223
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| A064223 |
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a(1) = 1; a(n + 1) = a(n) + number of decimal digits of a(n) for n > 0. |
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+0
2
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| 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 103, 106, 109, 112, 115, 118, 121, 124, 127, 130, 133, 136
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,1000
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FORMULA
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a(1) = 1; a(n + 1) = a(n) + ceil(log10(a(n) + 1)) for n > 0
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PROGRAM
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(PARI) { a=0; for (n=1, 1000, write("b064223.txt", n, " ", a+=#Str(a)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Sep 10 2009]
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CROSSREFS
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Sequence in context: A032960 A117804 A088235 this_sequence A098952 A144688 A164836
Adjacent sequences: A064220 A064221 A064222 this_sequence A064224 A064225 A064226
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KEYWORD
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nice,nonn,base
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AUTHOR
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Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 21 2001
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EXTENSIONS
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FORMULA corrected by Harry J. Smith (hjsmithh(AT)sbcglobal.net), Sep 10 2009
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