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Search: id:A066363
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| A066363 |
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The floor[n^(3/4)]-perfect numbers, where f-perfect numbers for an arithmetical function f is defined in A066218. |
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+0
1
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| 2, 4, 8, 10, 16, 98, 236, 244, 268, 284, 292, 316, 332, 638, 2198, 2282, 2338, 2422, 2674, 4653
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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J. Pe, On a Generalization of Perfect Numbers, J. Rec. Math., 31(3) (2002-2003), 168-172.
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MATHEMATICA
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f[x_] := Floor[ x^(3/4)]; Select[ Range[ 2, 10^4], 2 * f[ # ] == Apply[ Plus, Map[ f, Divisors[ # ] ] ] & ]
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CROSSREFS
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Cf. A066218.
Adjacent sequences: A066360 A066361 A066362 this_sequence A066364 A066365 A066366
Sequence in context: A097210 A097214 A045579 this_sequence A122636 A095726 A099942
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KEYWORD
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nonn
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AUTHOR
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Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Dec 20 2001
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