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%I #3 Mar 30 2012 18:52:40
%S 10,91,115,119,205,209,213,217,291,295,299,305,323,407,411,485,489,
%T 493,497,501,515,533,685,699,703,717,749,767,785,789,803,917,955,989,
%U 1007,1077,1115,1137,1141,1145,1195,1199,1203,1207,1257,1267,1333,1343,1347
%N Numbers n such that n-4, n and n+4 are all twin semiprimes.
%e a(1)=10 because 10-4=6, 10 and 10+4=14 are all twin semiprimes.
%Y Cf. A175612, A175648, A175664.
%K nonn
%O 1,1
%A _Juri-Stepan Gerasimov_, Aug 12 2010
%E Corrected (299, 411 etc inserted) by _R. J. Mathar_, Aug 13 2010
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