2772-hyperperfect numbers: n = 2772*(sigma(n)-n-1) + 1.

A028502

2772-hyperperfect numbers: n = 2772*(sigma(n)-n-1) + 1.

Terms

    a(0) =95295817a(1) =124035913a(2) =749931337a(3) =4275383113

External references