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A130431 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. 10
0, 10000000000, 20000000000, 30000000000, 40000000000, 50000000000, 60000000000, 70000000000, 80000000000 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

EXAMPLE

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.

CROSSREFS

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 * A017182 A017278 A017518

Adjacent sequences:  A130428 A130429 A130430 * A130432 A130433 A130434

KEYWORD

base,fini,nonn,full

AUTHOR

Graeme McRae (g_m(AT)mcraefamily.com), May 26 2007

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Last modified February 16 17:46 EST 2012. Contains 205939 sequences.