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Search: id:A069144
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| 1, 2, 12, 40, 120, 208, 280, 396, 440, 520, 624, 672, 680, 760, 920, 1040, 1160, 1240, 1456, 1480, 1640, 1720, 1880, 2120, 2288, 2360, 2440, 2680, 2840, 2920, 3120, 3160, 3320, 3360, 3392, 3536, 3560, 3880, 3952, 3960, 4040, 4120, 4280, 4360, 4368, 4520
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OFFSET
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1,2
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COMMENT
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For n > 4 A068976(a(n))>=40 and almost all terms k in the sequence are such that A068976(k)=40.
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PROGRAM
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(PARI) for(n=1, 10000, if(n%sumdiv(n, d, d/core(d))==0, print1(n, ", ")))
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CROSSREFS
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Sequence in context: A008911 A005719 A118417 this_sequence A013194 A074447 A110953
Adjacent sequences: A069141 A069142 A069143 this_sequence A069145 A069146 A069147
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KEYWORD
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easy,nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 08 2002
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