Numbers that are the sum of three nonzero squares.

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) =27a(14) =29a(15) =30a(16) =33a(17) =34a(18) =35a(19) =36a(20) =38a(21) =41a(22) =42a(23) =43a(24) =44a(25) =45a(26) =46a(27) =48a(28) =49a(29) =50