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Search: id:A130431
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| A130431 |
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Complete list of all 9 numbers n such that n is equal to the number of 9's in the decimal digits of all numbers <= n. |
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+0
11
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| 0, 10000000000, 20000000000, 30000000000, 40000000000, 50000000000, 60000000000, 70000000000, 80000000000
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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a(5)=40000000000 because the number of 9's in the decimal digits of the numbers from 0 to 40000000000 is 40000000000 and this is the 5th such number.
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CROSSREFS
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Cf. A014778 for proof these sequences are finite; Also A101639, A101640, A101641, A130427, A130428, A130429, A130430; Cf. A130432 for the number of numbers in these sequences.
Sequence in context: A055619 A057072 A130427 this_sequence A017182 A017278 A017518
Adjacent sequences: A130428 A130429 A130430 this_sequence A130432 A130433 A130434
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KEYWORD
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base,fini,nonn,full
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AUTHOR
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Graeme McRae (g_m(AT)mcraefamily.com), May 26 2007
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