A028500 - OEIS

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A028500

12-hyperperfect numbers: n=12(sigma(n)-n-1)+1.

697, 2041, 1570153, 62722153, 10604156641, 13544168521 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`a(7) > 10^12. 1792155938521 and 7056410014866537089009269921 are also terms. - Donovan Johnson, Nov 03 2011`
	LINKS	`J. S. McCranie, A study of hyperperfect numbers, J. Int. Seqs. Vol. 3 (2000) #P00.1.3` `Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	CROSSREFS	`Cf. A007593.` `Sequence in context: A137559 A185377 A118059 * A133251 A116338 A157366` `Adjacent sequences: A028497 A028498 A028499 * A028501 A028502 A028503`
	KEYWORD	`nonn`
	AUTHOR	`Jud McCranie (JudMcCranie(AT)ugaalum.uga.edu)`

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Last modified February 17 19:00 EST 2012. Contains 206076 sequences.