A204519(n)^2 = floor(A055851(n)/6): Squares which written in base 6, with some digit appended, yield another square.

A204573

A204519(n)^2 = floor(A055851(n)/6): Squares which written in base 6, with some digit appended, yield another square.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =1a(4) =4a(5) =16a(6) =121a(7) =400a(8) =1600a(9) =11881a(10) =39204a(11) =156816a(12) =1164241a(13) =3841600a(14) =15366400a(15) =114083761a(16) =376437604a(17) =1505750416a(18) =11179044361a(19) =36887043600a(20) =147548174400

External references