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A077132 Smaller of the first occurrence of two successive primes such that the product of sandwiched composite numbers has exactly n prime divisors. 1
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; refs; listen; history; internal format)
OFFSET

0,1

COMMENTS

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 8*9*10 has three prime divisors 2, 3 and 5.

CROSSREFS

Sequence in context: A114847 A171969 A075580 * A138184 A008965 A113864

Adjacent sequences:  A077129 A077130 A077131 * 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 February 17 16:13 EST 2012. Contains 206050 sequences.