Numbers n such that core(n)=floor(sqrt(n)), where core(x)=A007913(x) is the squarefree part of x and floor(sqrt(x))=A000196(x).

A069186

Numbers n such that core(n)=floor(sqrt(n)), where core(x)=A007913(x) is the squarefree part of x and floor(sqrt(x))=A000196(x).

Terms

    a(0) =1a(1) =8a(2) =12a(3) =63a(4) =224a(5) =240a(6) =575a(7) =1224a(8) =1260a(9) =2303a(10) =3968a(11) =6399a(12) =14399a(13) =20448a(14) =20592a(15) =28223a(16) =38024a(17) =38220a(18) =50175a(19) =65024a(20) =65280a(21) =82943a(22) =104328a(23) =104652a(24) =129599a(25) =159200a(26) =159600a(27) =193599a(28) =233288a(29) =233772

External references