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Smallest number equal to the product of two primes which is also equal to the sum of n distinct primes.
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%I #5 Mar 30 2012 18:40:00

%S 9,10,21,34,49,58,77,106,129,166,201,254,287,334,381,454,501,586,655,

%T 718,791,898,985,1082,1167,1282,1371,1486,1623,1754,1851,2018,2127,

%U 2302,2427,2594,2747,2942,3093,3274,3459,3646,3831,4034,4227,4474,4661,4894

%N Smallest number equal to the product of two primes which is also equal to the sum of n distinct primes.

%e a(2) = 9 = 3*3 = 2+7;

%e a(3) = 10 = 2*5 = 2+3+5;

%e a(4) = 21 = 3*7 = 2+3+5+11;

%e a(5) = 34 = 2*17 = 2+3+5+7+17;

%e a(6) = 49 = 7*7 = 2+3+5+7+13+19;

%e a(7) = 58 = 2*29 = 2+3+5+7+11+13+17.

%K nonn

%O 2,1

%A _Giovanni Teofilatto_, Feb 18 2005

%E Corrected and extended by _Ray Chandler_ Feb 25 2005