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A136607
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Odd primitive abundant numbers with only one prime factor 3 and only primes factors == 1 mod 6.
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2
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6945715839196407, 7516596593102961, 8189724646216659, 26180005855432611, 42208580868962781, 51825725877080883, 55031440879786917, 56085374579306709, 59554573006892691, 61107945437155071
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| The sequence A118466 gives n numbers such that n^2+n+1 are abundant numbers. The abundant numbers n^2+n+1 are of the form k*A136607, k with prime factors only == 1 mod 6
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EXAMPLE
| 6945715839196407=3*7*7*13*13*19*31*37*43*61*67*73
7516596593102961=3*7*7*13*13*19*31*37*43*61*67*79
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CROSSREFS
| Cf. A118466.
Sequence in context: A116500 A173533 A011529 * A115227 A104836 A160405
Adjacent sequences: A136604 A136605 A136606 * A136608 A136609 A136610
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KEYWORD
| nonn
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AUTHOR
| Pierre CAMI (pierre-cami(AT)bbox.fr), Jan 13 2008
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