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Smallest prime sandwiched between two numbers having exactly n prime divisors.
1

%I #9 Dec 05 2013 19:56:32

%S 3,11,131,1429,77141,3847271,117048931,22917541219,1771365487891,

%T 140734085123059,14159733947566481

%N Smallest prime sandwiched between two numbers having exactly n prime divisors.

%C Different from A088075 though initial three terms match. Sequence is infinite.

%D J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 131, p. 45, Ellipses, Paris 2008.

%e a(3) = 131, 130 = 2*5*13 and 132 = 2^2*3*11 both have three prime divisors. 131 is the smallest such prime.

%Y Cf. A088075.

%K more,nonn

%O 1,1

%A _Amarnath Murthy_, Sep 22 2003

%E More terms from _Ray Chandler_, Oct 08 2003

%E a(8) and a(9) from _Donovan Johnson_, Jun 19 2008

%E a(10)-a(11) from _Donovan Johnson_, Feb 18 2009