Smallest number of persistence n over product-of-nonzero-digits function.

A014120

Smallest number of persistence n over product-of-nonzero-digits function.

Terms

    a(0) =0a(1) =10a(2) =25a(3) =39a(4) =77a(5) =679a(6) =6788a(7) =68889a(8) =2677889a(9) =26888999a(10) =3778888999

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