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Search: id:A140134
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A140134 a(n)=2a(n-1) but when sum of digits is greather than 9 take greater number below with digits sum = 9. +0
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1, 2, 4, 8, 16, 32, 63, 126, 252, 504, 1008, 2016, 4032, 8001, 16002, 32004, 63000, 126000, 252000, 504000, 1008000, 2016000, 4032000, 8001000, 16002000, 32004000, 63000000, 126000000, 252000000, 504000000, 1008000000, 2016000000 (list; graph; listen)
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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.

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