Least semiprime m such that the next semiprime is m + A215231(n).

Terms

a(0) =4a(1) =6a(2) =10a(3) =15a(4) =26a(5) =95a(6) =597a(7) =1418a(8) =2681a(9) =6559a(10) =16053a(11) =17965a(12) =32777a(13) =35103a(14) =35981a(15) =340894a(16) =1069541a(17) =1589662a(18) =3586843a(19) =5835191a(20) =139139887a(21) =251306317a(22) =285074689a(23) =327023206a(24) =751411951a(25) =981270902a(26) =2655397631a(27) =5238280946a(28) =6498130361a(29) =8512915573