phi(n) plus the n-th prime gives a square.

Terms

a(0) =2a(1) =4a(2) =14a(3) =27a(4) =30a(5) =65a(6) =80a(7) =113a(8) =174a(9) =332a(10) =483a(11) =498a(12) =547a(13) =684a(14) =734a(15) =737a(16) =761a(17) =944a(18) =1693a(19) =1855a(20) =2204a(21) =3358a(22) =3461a(23) =3647a(24) =3787a(25) =3908a(26) =4180a(27) =6144a(28) =6915a(29) =7638