id:A152245 - OEIS Search Results

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Primes p where |p-m| = 1, where m is any of the smallest positive integers with their number of divisors. (m belongs to sequence A007416.)

+0
2

2, 3, 5, 7, 11, 13, 17, 23, 37, 47, 59, 61, 179, 181, 191, 193, 239, 241, 359, 577, 719, 839, 1259, 1297, 2521, 2879, 5039, 6299, 6301, 6481, 6719, 7559, 7561, 10079, 12289, 14401, 15121, 15359, 15361, 20161, 25919, 32401, 44101, 45361, 55439, 55441 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	EXAMPLE	`The smallest positive integer with 8 divisors is 24. 24 - 1 = 23 is prime. But 24 + 1 = 25 is composite. So, 23 is in the sequence, while 25 is not.`
	CROSSREFS	`A007416, A152246` `Sequence in context: A012884 A068669 A100553 this_sequence A007693 A103144 A105909` `Adjacent sequences: A152242 A152243 A152244 this_sequence A152246 A152247 A152248`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Nov 30 2008`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 05 2008`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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