Numbers k which are concatenations k=x//y such that x^2 + y^2 is a multiple of k.

Terms

a(0) =101a(1) =137a(2) =202a(3) =274a(4) =292a(5) =303a(6) =404a(7) =505a(8) =606a(9) =657a(10) =707a(11) =808a(12) =909a(13) =1233a(14) =2466a(15) =3577a(16) =3699a(17) =8833a(18) =9901a(19) =10100a(20) =16577a(21) =17666a(22) =20200a(23) =26499a(24) =30300a(25) =40400a(26) =49457a(27) =50500a(28) =60600a(29) =70700