A073494 - OEIS

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A073494

Numbers having exactly two prime gaps in their factorization.

110, 130, 170, 182, 190, 220, 230, 238, 260, 266, 273, 290, 310, 322, 340, 357, 364, 370, 374, 380, 399, 406, 410, 418, 430, 434, 440, 460, 470, 476, 483, 494, 506, 518, 520, 530, 532, 546, 550, 561, 574, 580, 590, 598, 602, 609, 610, 620, 627, 638, 644 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`A073490(a(n)) = 2.`
	EXAMPLE	`220 is a term, as 220 = 225*11 with two gaps: between 2 and 5 and between 5 and 11.`
	CROSSREFS	`Cf. A005117, A073492, A073493, A073495, A073488.` `Sequence in context: A101317 A059469 A114068 * A073488 A176879 A039447` `Adjacent sequences: A073491 A073492 A073493 * A073495 A073496 A073497`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 03 2002`

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Last modified February 16 02:30 EST 2012. Contains 205860 sequences.