Least prime such that between it and the next prime there are exactly n semiprimes.

Terms

a(0) =2a(1) =3a(2) =7a(3) =31a(4) =89a(5) =139a(6) =113a(7) =211a(8) =1381a(9) =1637a(10) =1129a(11) =2557a(12) =2971a(13) =1327a(14) =15683a(15) =16141a(16) =9973a(17) =35677a(18) =34061a(19) =43331a(20) =19609a(21) =107377a(22) =162143a(23) =44293a(24) =404597a(25) =461717a(26) =838249a(27) =155921a(28) =535399a(29) =492113