Semiprimes p such that next semiprime after p is p + 40.

Terms

a(0) =741841a(1) =1633213a(2) =1889467a(3) =1946677a(4) =2210557a(5) =2440203a(6) =2655427a(7) =2660857a(8) =2729091a(9) =2749273a(10) =2774911a(11) =3077323a(12) =3724909a(13) =3977473a(14) =4021507a(15) =4030891a(16) =4323301a(17) =4372337a(18) =4408581a(19) =4421713a(20) =4608574a(21) =4640419a(22) =4836223a(23) =5640861a(24) =5691531a(25) =6148599a(26) =6166101a(27) =6429853a(28) =6786523