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A130429
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List of all numbers n such that n is equal to the number of 7's in the decimal digits of all numbers <= n.
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14
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0, 9465000000, 9471736170, 9500000000, 9757536170, 9965000000, 9971736170, 10000000000, 19465000000, 19471736170, 19500000000, 19757536170, 19965000000, 19971736170, 20000000000, 29465000000, 29471736170
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listen;
history;
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internal format)
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OFFSET
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1,2
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COMMENTS
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A finite sequence with 49 terms.
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LINKS
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EXAMPLE
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a(5)=9757536170 because the number of 7's in the decimal digits of the numbers from 0 to 9757536170 is 9757536170 and this is the 5th such number.
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CROSSREFS
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KEYWORD
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base,fini,full,nonn
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AUTHOR
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STATUS
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approved
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