n - (sum of prime factors of n^2+1) is a positive square.

Terms

a(0) =38a(1) =133a(2) =172a(3) =253a(4) =460a(5) =477a(6) =580a(7) =612a(8) =717a(9) =996a(10) =1057a(11) =1568a(12) =1641a(13) =2244a(14) =2820a(15) =3193a(16) =3253a(17) =3652a(18) =3848a(19) =4284a(20) =4733a(21) =4900a(22) =4908a(23) =5063a(24) =5380a(25) =6396a(26) =7220a(27) =8712a(28) =9245a(29) =9972