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A003553
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Divisors of 2^48 - 1.
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1
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1, 3, 5, 7, 9, 13, 15, 17, 21, 35, 39, 45, 51, 63, 65, 85, 91, 97, 105, 117, 119, 153, 195, 221, 241, 255, 257, 273, 291, 315, 357, 455, 485, 585, 595, 663, 673, 679, 723, 765, 771, 819, 873, 1071, 1105, 1205, 1261
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OFFSET
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1,2
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COMMENTS
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The following triangular numbers belong to this sequence: 1, 3, 15, 21, 45, 91, 105, 153, 595, 4095, 18915. - Bruno Berselli, Jul 12 2014
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LINKS
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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nonn,fini,full,easy
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AUTHOR
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STATUS
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approved
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