Numbers k such that the concatenation of k with itself is a biperiod square.

A102567

Numbers k such that the concatenation of k with itself is a biperiod square.

Terms

    a(0) =13223140496a(1) =20661157025a(2) =29752066116a(3) =40495867769a(4) =52892561984a(5) =66942148761a(6) =82644628100

External references