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Search: id:A096360
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| 1, 2, 3, 4, 6, 7, 8, 14, 16, 28, 31, 32, 62, 64, 124, 127, 128, 248, 254, 256, 496, 508, 512, 1016, 1024, 2032, 2048, 4064, 4096, 8128, 8191, 8192, 16382, 16384, 32764, 32768, 65528, 65536, 131056, 131071, 131072, 262112, 262142, 262144, 524224, 524284
(list; graph; listen)
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OFFSET
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1,2
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MATHEMATICA
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a = {}; Do[p = 2^Prime[n] - 1; If[ PrimeQ[p], AppendTo[a, Divisors[ p*(p + 1)/2]]], {n, 17}]; a = Take[ Union[ Flatten[a]], 46] (from Robert G. Wilson v Jul 14 2004)
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CROSSREFS
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Cf. A000396, A000043.
Sequence in context: A018314 A070525 A099005 this_sequence A039087 A093710 A091421
Adjacent sequences: A096357 A096358 A096359 this_sequence A096361 A096362 A096363
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KEYWORD
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nonn
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AUTHOR
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Lekraj Beedassy (blekraj(AT)yahoo.com), Jun 30 2004
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EXTENSIONS
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Edited and extended by Robert G. Wilson v (rgwv(AT)rgwv.com) and Ray Chandler (rayjchandler(AT)sbcglobal.net), Jul 14 2004
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