Numbers k that are neither squarefree nor prime powers such that A119288(k) <= k/A007947(k) < A053669(k) and k has a primorial kernel but is not a product of primorials.

A369419

Numbers k that are neither squarefree nor prime powers such that A119288(k) <= k/A007947(k) < A053669(k) and k has a primorial kernel but is not a product of primorials.

Terms

    a(0) =18a(1) =90a(2) =150a(3) =630a(4) =1050a(5) =1470a(6) =1890a(7) =2100a(8) =6930a(9) =11550a(10) =16170a(11) =20790a(12) =23100a(13) =25410a(14) =90090a(15) =150150a(16) =210210a(17) =270270a(18) =300300a(19) =330330a(20) =390390a(21) =420420a(22) =450450a(23) =1531530a(24) =2552550a(25) =3573570a(26) =4594590a(27) =5105100a(28) =5615610a(29) =6636630

External references