id:A088070 - OEIS Search Results

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Numbers sandwiched between two numbers having the same number of prime divisors.

+0
2

3, 4, 6, 8, 10, 11, 12, 13, 18, 19, 21, 23, 24, 25, 26, 27, 28, 30, 34, 35, 37, 39, 42, 45, 47, 48, 49, 51, 53, 55, 56, 57, 60, 64, 72, 73, 75, 76, 80, 81, 82, 86, 87, 92, 93, 94, 95, 97, 99, 102, 105, 107, 108, 116, 117, 118, 123, 126, 131, 134, 135, 138, 139, 142, 143, 144 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Subsidiary sequence: (1) Start of the first run of a string of n successive integers in this sequence. Conjecture: For every k there is a string of k successive integers.`
	EXAMPLE	`11 is a member as 10 and 12 both have two prime divisors.` `26 is a member as 25 and 27 both have one each prime divisor.`
	CROSSREFS	`A063464(n+1) + 1.` `Sequence in context: A059267 A049433 A135251 this_sequence A140497 A029900 A003257` `Adjacent sequences: A088067 A088068 A088069 this_sequence A088071 A088072 A088073`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 22 2003`
	EXTENSIONS	`More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 27 2003`

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Last modified March 17 15:31 EDT 2010. Contains 173524 sequences.

AT&T Labs Research