a(n) = floor( {n concatenated with n n times }^(1/2) * 10 )^2.

A114777

a(n) = floor( {n concatenated with n n times }^(1/2) * 10 )^2.

Terms

    a(0) =100a(1) =2116a(2) =33124a(3) =443556a(4) =5555449a(5) =66650896a(6) =777740544a(7) =8888718400a(8) =99999515529

External references