Smallest n-th order perfect digital invariant or PDI: smallest number > 1 equal to sum of n-th powers of its digits, or 0 if no such number exists.

A003321

Smallest n-th order perfect digital invariant or PDI: smallest number > 1 equal to sum of n-th powers of its digits, or 0 if no such number exists.

Terms

    a(0) =2a(1) =0a(2) =153a(3) =1634a(4) =4150a(5) =548834a(6) =1741725a(7) =24678050a(8) =146511208a(9) =4679307774a(10) =32164049650a(11) =0a(12) =564240140138a(14) =0a(17) =0

External references