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Search: id:A130432
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| A130432 |
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For digit n from 1 to 9, a(n) = the number of numbers m such that m is equal to the number of n's in the decimal digits of all numbers <= m. |
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+0
10
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OFFSET
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1,1
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COMMENT
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Note: sequences A101639, A101640, and A101641 are defined so that they exclude 0, so they have 13, 35, and 47 elements, respectively. This sequence counts all the zeros, so elements 2,3,4 of this sequence are 14,36,48.
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EXAMPLE
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a(3)=36 because there are 36 numbers m such that m is equal to the number of 3's in the decimal digits of all numbers <= m.
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CROSSREFS
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Cf. A014778 for proof these sequences are finite, and also A101639, A101640, A101641, A130427, A130428, A130429, A130430, A130431 for the numbers themselves.
Adjacent sequences: A130429 A130430 A130431 this_sequence A130433 A130434 A130435
Sequence in context: A087532 A116307 A093676 this_sequence A066689 A008898 A033404
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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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