id:A143958 - OEIS Search Results

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An integer >= 2 is included if {the difference between the largest and smallest primes dividing n} divides n-1.

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6, 10, 12, 15, 18, 21, 24, 33, 35, 36, 40, 45, 48, 54, 55, 56, 65, 72, 75, 77, 78, 85, 91, 96, 100, 105, 108, 126, 133, 135, 136, 143, 144, 145, 154, 160, 161, 162, 175, 187, 189, 192, 196, 209, 216, 217, 221, 225, 245, 247, 250, 253, 261, 288, 297, 323, 324, 336 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	EXAMPLE	`The largest prime dividing 21 is 7. The smallest prime dividing 21 is 3. 7-3=4 divides 21-1=20. So 21 is in the sequence.`
	CROSSREFS	`A143957` `Sequence in context: A108315 A134616 A081390 this_sequence A063214 A075082 A101503` `Adjacent sequences: A143955 A143956 A143957 this_sequence A143959 A143960 A143961`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Sep 05 2008`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 07 2008`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

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