12-hyperperfect numbers: n = 12*(sigma(n) - n - 1) + 1.

A028500

12-hyperperfect numbers: n = 12*(sigma(n) - n - 1) + 1.

Terms

    a(0) =697a(1) =2041a(2) =1570153a(3) =62722153a(4) =10604156641a(5) =13544168521

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