a(n+1) is the smallest cube > a(n) such that the digits of a(n) are all (with multiplicity) properly contained in the digits of a(n+1), with a(0)=1.

A067972

a(n+1) is the smallest cube > a(n) such that the digits of a(n) are all (with multiplicity) properly contained in the digits of a(n+1), with a(0)=1.

Terms

    a(0) =1a(1) =125a(2) =15625a(3) =1157625a(4) =311665752a(5) =19356769125a(6) =291566137591

External references