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%I #8 Dec 27 2012 12:02:25
%S 6,9,14,21,33,106,611,1437,2701,6583,16078,17993,32807,35135,36019,
%T 340941,1069595,1589717,3586913,5835265,139139963,251306399,285074774,
%U 327023293,751412039,981270997,2655397729,5238281053,6498130471,8512915685,16328958739
%N Least semiprime m such that the previous semiprime is m - A215231(n).
%C These are the semiprimes that are the upper end of the gaps of length A215231. The lower end semiprimes are given in A215232.
%H Donovan Johnson, <a href="/A217851/b217851.txt">Table of n, a(n) for n = 1..38</a>
%Y Cf. A001358 (semiprimes), A131109, A215231, A215232.
%K nonn,hard
%O 1,1
%A _T. D. Noe_, Nov 07 2012