id:A077132 - OEIS Search Results

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Smaller of the first occurrence of two successive primes such that the product of sandwiched composite numbers has exactly n prime divisors.

+0
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2, 3, 5, 7, 13, 19, 31, 53, 73, 89, 359, 139, 401, 181, 113, 211, 293, 661, 863, 773, 523, 1933, 1831, 1069, 1381, 887, 1637, 1129, 1669, 1951, 4027, 3469, 4177, 6397, 2477, 2971, 5531, 1327, 4297, 4831, 5351, 5591, 9973, 11743, 13187, 8467, 27851, 18803, 39047 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Duplicate of A075580. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 20 2009]`
	LINKS	`Donovan Johnson, Table of n, a(n) for n=0..257`
	EXAMPLE	`a(0) = 2, a(3) = 7 as the product 8910 has three prime divisors 2, 3 and 5.`
	CROSSREFS	`Sequence in context: A101045 A114847 A075580 this_sequence A138184 A008965 A113864` `Adjacent sequences: A077129 A077130 A077131 this_sequence A077133 A077134 A077135`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Oct 29 2002`
	EXTENSIONS	`More terms from Donovan Johnson, Sep 09 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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