Composite integers m such that the sum of the integers x <= m not coprime to m ends with digits of m.

A239245

Composite integers m such that the sum of the integers x <= m not coprime to m ends with digits of m.

Terms

    a(0) =240a(1) =5625a(2) =40625a(3) =1640625a(4) =4140625a(5) =39495680a(6) =47265625a(7) =56640625a(8) =3574214656a(9) =66247700480a(10) =115760971776

External references