Numbers that are the sum of 3 nonzero squares in exactly 1 way.

Terms

a(0) =3a(1) =6a(2) =9a(3) =11a(4) =12a(5) =14a(6) =17a(7) =18a(8) =19a(9) =21a(10) =22a(11) =24a(12) =26a(13) =29a(14) =30a(15) =34a(16) =35a(17) =36a(18) =42a(19) =43a(20) =44a(21) =45a(22) =46a(23) =48a(24) =49a(25) =50a(26) =53a(27) =56a(28) =61a(29) =65