Least j > 1 for n > 0 such that j^2 = (n^2 + 1)*(k^2) + (n^2 + 1)*k + 1 where k sequence = A106230.

Terms

a(0) =5a(1) =19a(2) =11a(3) =35a(4) =79a(5) =149a(6) =251a(7) =391a(8) =575a(9) =809a(10) =1099a(11) =1451a(12) =1871a(13) =2365a(14) =2939a(15) =3599a(16) =4351a(17) =5201a(18) =6155a(19) =7219a(20) =8399a(21) =9701a(22) =11131a(23) =12695a(24) =14399a(25) =16249a(26) =18251a(27) =20411a(28) =22735a(29) =25229