Numbers k such that k | (sigma(k) - d(k) - phi(k)) and k is not a prime or twice a prime.

A055971

Numbers k such that k | (sigma(k) - d(k) - phi(k)) and k is not a prime or twice a prime.

Terms

    a(0) =1a(1) =198a(2) =294a(3) =20280a(4) =195320a(5) =1782240a(6) =3038720a(7) =12190720

External references