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Search: id:A083539
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| 3, 12, 28, 42, 72, 96, 120, 195, 234, 216, 336, 392, 336, 576, 744, 558, 702, 780, 840, 1344, 1152, 864, 1440, 1860, 1302, 1680, 2240, 1680, 2160, 2304, 2016, 3024, 2592, 2592, 4368, 3458, 2280, 3360, 5040, 3780, 4032, 4224, 3696, 6552, 5616, 3456, 5952
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OFFSET
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1,1
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EXAMPLE
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n=10, sigma[10]=18, sigma[11]=12,a(10)=216
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MATHEMATICA
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f[x_] := DivisorSigma[1, x] t=Table[f[w+1]*f[w], {w, 1, 128}]
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CROSSREFS
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Cf. A000203, A060781, A060780, A083538.
Sequence in context: A083543 A083538 A060781 this_sequence A066643 A140065 A115549
Adjacent sequences: A083536 A083537 A083538 this_sequence A083540 A083541 A083542
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), May 21 2003
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