a(n+1) is the smallest square > 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)=4.

A067714

a(n+1) is the smallest square > 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)=4.

Terms

    a(0) =4a(1) =49a(2) =1849a(3) =18496a(4) =134689a(5) =1338649a(6) =13380964a(7) =103693489a(8) =1036389249a(9) =10283379649a(10) =102743968369

External references