Least semiprime of a run of exactly n with alternating parity.

Terms

a(0) =4a(1) =14a(2) =6a(3) =622a(4) =93a(5) =1211a(6) =69a(7) =15746a(8) =1273a(9) =844147a(10) =21a(11) =3786374a(12) =1357511a(13) =37008721a(14) =20028781a(15) =201010021a(16) =91186105a(17) =6969801571a(18) =224163661a(19) =518479039339a(20) =15633784177a(22) =83460915203a(23) =669094978066a(24) =691286884697