Composite squarefree numbers n such that p-d(n) divides n-d(n), where p are the prime factors of n and d(n) the number of divisors of n.

A228300

Composite squarefree numbers n such that p-d(n) divides n-d(n), where p are the prime factors of n and d(n) the number of divisors of n.

Terms

    a(0) =6a(1) =10a(2) =15a(3) =110a(4) =170a(5) =273a(6) =638a(7) =935a(8) =1394a(9) =2093a(10) =2438a(11) =2465a(12) =4823a(13) =5453a(14) =7973a(15) =11978a(16) =16354a(17) =17963a(18) =34918a(19) =43337a(20) =46943a(21) =62491a(22) =64583a(23) =68266a(24) =71603a(25) =72046a(26) =74347a(27) =75361a(28) =85877a(29) =134458

External references