id:A007539 - OEIS Search Results

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First n-fold perfect number.
(Formerly M4297)

+0
9

1, 6, 120, 30240, 14182439040, 154345556085770649600, 141310897947438348259849402738485523264343544818565120000, 82680996870777613728992419486359628935019438832924555488439324214138844763917737\ 08366277840568053624227289196057256213348352000000000 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).` `A. H. Beiler, Recreations in the Theory of Numbers, Dover, NY, 1964, p. 22.` `A. Brousseau, Number Theory Tables. Fibonacci Association, San Jose, CA, 1973, p. 138.` `R. K. Guy, Unsolved Problems in Number Theory, B2.`
	LINKS	`Walter Nissen, Abundancy : Some Resources` `C. K. Caldwell, The Prime Glossary, multiply perfect` `Achim Flammenkamp, The Multiply Perfect Numbers Page` `Fred Helenius, Link to Glossary and Lists`
	CROSSREFS	`Cf. A000396, A005820, A027687, A046060, A046061.` `Cf. A007691, A072002.` `Sequence in context: A012475 A053777 A023199 this_sequence A040996 A110442 A137149` `Adjacent sequences: A007536 A007537 A007538 this_sequence A007540 A007541 A007542`
	KEYWORD	`nonn,nice`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms sent by Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 30 2000`

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

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