Numbers k such that (k+1)*phi(k) is a perfect square.

Terms

a(0) =8a(1) =26a(2) =44a(3) =48a(4) =63a(5) =485a(6) =636a(7) =866a(8) =960a(9) =1034a(10) =1351a(11) =1407a(12) =1520a(13) =3970a(14) =4912a(15) =7580a(16) =8749a(17) =12935a(18) =14282a(19) =19601a(20) =20824a(21) =23103a(22) =36480a(23) =43680a(24) =44505a(25) =48599a(26) =49004a(27) =58620a(28) =63000a(29) =72896