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A152482 Even numbers which are not the sum of 2 even semiprimes. 2

%I #3 Mar 30 2012 17:35:01

%S 2,4,6,22,34,46,54,58,70,74,82,94,102,106,114,118,130,134,142,154,158,

%T 166,174,178,186,190,194,202,214,226,234,238,242,246,250,254,262,270,

%U 274,286,290,294,298,310,314,322,326,334,342,346,354,358,370,374,378

%N Even numbers which are not the sum of 2 even semiprimes.

%C Twice A014092. [From _Omar E. Pol_, Dec 26 2008]

%F a(n) = A014092(n)*2. [From _Omar E. Pol_, Dec 26 2008]

%e 102 is in this sequence because no 2 even semiprimes sum to 102. 104 is not in this sequence because the sum of 10 (even semiprime) and 94 (even semiprime) is 104.

%Y Cf. A001358, A100484, A152483, A152484.

%Y Cf. A014092. [From _Omar E. Pol_, Dec 26 2008]

%K nonn

%O 1,1

%A _Donovan Johnson_, Dec 06 2008

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)