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Sum of the numbers already killed in the first jump of a Sieve of Eratosthenes table.
2

%I #3 Mar 30 2012 18:55:34

%S 0,4,23,39,116,175,306,393,578,966,1054,1483,1907,2116,2608,3251,3980,

%T 4398,5350,5967,6469,7450,8336,9624,11197,12084,12796,13946,14700,

%U 15916,19642,21058,22795,23482,27079,28127,30116,32833,34643,37530,39819

%N Sum of the numbers already killed in the first jump of a Sieve of Eratosthenes table.

%C 2(4) = 0, 3(6) = 4, 5(10) = 23(6,8,9), 7(14) = 39(8,9,10,12), 11(22) = 116(12,14,15,16,18,20,21)

%C Sum of the composite numbers from prime(n) up to 2*prime(n)-1. [From _R. J. Mathar_, Jul 21 2010]

%Y Cf. A000040

%K easy,nonn

%O 0,2

%A _Odimar Fabeny_, Jul 21 2010

%E More terms from _R. J. Mathar_, Jul 21 2010