Numbers k whose deficiency is 12: 2k - sigma(k) = 12.

A141549

Numbers k whose deficiency is 12: 2k - sigma(k) = 12.

Terms

    a(0) =13a(1) =45a(2) =76a(3) =688a(4) =8896a(5) =133888a(6) =537051136

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