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A038182
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3-infinitary perfect numbers k: 3-i-sigma(k)=2*k where 3-i-sigma(.) = A049418(.).
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1
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..7.
J. O. M. Pedersen, Tables of Aliquot Cycles
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EXAMPLE
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Factorizations: 2*3, 2^2*7, 2^4*3^3*7, 2^3*3^2*7*13, 2^9*3^4*5*7*19, 2^6*3*5*19*37*73, 2^10*3^6*5*19^2*127*379*757.
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CROSSREFS
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Cf. A037445, A038148.
Sequence in context: A066239 A097464 A166998 * A095723 A057246 A154895
Adjacent sequences: A038179 A038180 A038181 * A038183 A038184 A038185
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KEYWORD
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nonn,nice
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AUTHOR
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Yasutoshi Kohmoto (zbi74583(AT)boat.zero.ad.jp)
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EXTENSIONS
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Definition shortened - R. J. Mathar, Oct 06 2010
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STATUS
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approved
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