Numbers n such that n + pi(n) is a square.

Terms

a(0) =0a(1) =1a(2) =6a(3) =11a(4) =18a(5) =27a(6) =37a(7) =49a(8) =63a(9) =114a(10) =159a(11) =183a(12) =210a(13) =238a(14) =268a(15) =299a(16) =333a(17) =368a(18) =405a(19) =443a(20) =484a(21) =526a(22) =571a(23) =663a(24) =714a(25) =765a(26) =820a(27) =874a(28) =931a(29) =990