Numbers having exactly three representations by the quadratic form x^2+xy+y^2 with 0<=x<=y.

Terms

a(0) =637a(1) =931a(2) =1183a(3) =1519a(4) =1813a(5) =1911a(6) =2107a(7) =2401a(8) =2527a(9) =2548a(10) =2793a(11) =2989a(12) =3211a(13) =3283a(14) =3549a(15) =3577a(16) =3724a(17) =3871a(18) =4557a(19) =4693a(20) =4732a(21) =4753a(22) =5047a(23) =5239a(24) =5341a(25) =5439a(26) =5733a(27) =6076a(28) =6223a(29) =6253