Numbers k such that P(k)^4 | k and P(k+1)^2 | (k+1), where P(k) = A006530(k) is the largest prime dividing k.

A354566

Numbers k such that P(k)^4 | k and P(k+1)^2 | (k+1), where P(k) = A006530(k) is the largest prime dividing k.

Terms

    a(0) =101250a(1) =11859210a(2) =23049600a(3) =32580250a(4) =131545575a(5) =162364824a(6) =969697050a(7) =1176565754a(8) =1271688417a(9) =1612089680a(10) =1862719859a(11) =2409451520a(12) =2441023914a(13) =3182903731a(14) =3697778084a(15) =4010283270a(16) =4329214629a(17) =6666661950a(18) =6932744126a(19) =7739389944a(20) =9188994752a(21) =11717364285a(22) =17306002674

External references