a(n) is the upper end of a record gap A349995(n) between consecutive odd squarefree semiprimes (A046388).

A350099

a(n) is the upper end of a record gap A349995(n) between consecutive odd squarefree semiprimes (A046388).

Terms

    a(0) =21a(1) =33a(2) =111a(3) =287a(4) =2391a(5) =6583a(6) =8843a(7) =13733a(8) =15293a(9) =21619a(10) =36019a(11) =66961a(12) =113053a(13) =340941a(14) =783809a(15) =872279a(16) =3058917a(17) =3586913a(18) =5835265a(19) =12345557a(20) =108994713a(21) =248707009a(22) =268749791a(23) =679956221a(24) =709239737a(25) =3648864977a(26) =3790337843a(27) =4171420613a(28) =33955869829a(29) =34279038517

External references