id:A135627 - OEIS Search Results

Search: id:A135627

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Perfect numbers minus 1.

+0
3

5, 27, 495, 8127, 33550335, 8589869055, 137438691327, 2305843008139952127, 2658455991569831744654692615953842175, 191561942608236107294793378084303638130997321548169215 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=A000396(n)-1.`
	CROSSREFS	`Cf. A000396.` `Sequence in context: A126119 A105631 A167019 this_sequence A002401 A034946 A119941` `Adjacent sequences: A135624 A135625 A135626 this_sequence A135628 A135629 A135630`
	KEYWORD	`easy,nonn`
	AUTHOR	`Omar E. Pol (info(AT)polprimos.com), Nov 27 2007`

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

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