Numbers of form x^2 + 6y^2.

Terms

a(0) =0a(1) =1a(2) =4a(3) =6a(4) =7a(5) =9a(6) =10a(7) =15a(8) =16a(9) =22a(10) =24a(11) =25a(12) =28a(13) =31a(14) =33a(15) =36a(16) =40a(17) =42a(18) =49a(19) =54a(20) =55a(21) =58a(22) =60a(23) =63a(24) =64a(25) =70a(26) =73a(27) =79a(28) =81a(29) =87