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A108865 Numbers n such that the perfect deficiency of n (A109883) is prime. +0
1
3, 9, 10, 12, 25, 30, 36, 49, 50, 60, 70, 81, 121, 126, 136, 144, 150, 210, 225, 289, 324, 330, 338, 350, 390, 462, 484, 490, 510, 660, 676, 690, 750, 770, 780, 784, 800, 841, 961, 1058, 1089, 1156, 1190, 1225, 1250, 1380, 1470, 1500, 1610, 1650, 1682, 1750 (list; graph; listen)
OFFSET

1,1

COMMENT

Consecutive terms are 9,10 and 49,50. Are there any more?

CROSSREFS

Sequence in context: A059012 A055063 A030354 this_sequence A036119 A050852 A066887

Adjacent sequences: A108862 A108863 A108864 this_sequence A108866 A108867 A108868

KEYWORD

easy,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Jul 12 2005

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.


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