id:A118883 - OEIS Search Results

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Smallest prime p with bigomega(p+1)=n, where bigomega(m)=A001222(m) is the number of prime divisors of m (counted with multiplicity).

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2, 3, 7, 23, 31, 223, 127, 383, 1151, 3583, 5119, 6143, 8191, 129023, 73727, 245759, 131071, 917503, 524287, 5505023, 10616831, 14680063, 18874367, 109051903, 169869311 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Equivalently, smallest prime p such that p+1 is an n-almost prime. For smallest prime p such that p+1 is a squarefree n-almost prime, see A098026.`
	EXAMPLE	`a(4) = 23 because 23 is prime and 23+1 = 222*3 has 4 prime factors (24 is a 4-almost prime).`
	CROSSREFS	`Cf. A073919, A098026, A073918.` `Sequence in context: A120302 A093363 A127581 this_sequence A061712 A059661 A072686` `Adjacent sequences: A118880 A118881 A118882 this_sequence A118884 A118885 A118886`
	KEYWORD	`nonn`
	AUTHOR	`Rick L. Shepherd (rshepherd2(AT)hotmail.com), May 03 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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