Numbers of form 7 x^2 + 9 y^2.

Terms

a(0) =0a(1) =7a(2) =9a(3) =16a(4) =28a(5) =36a(6) =37a(7) =43a(8) =63a(9) =64a(10) =72a(11) =81a(12) =88a(13) =99a(14) =109a(15) =112a(16) =121a(17) =144a(18) =148a(19) =151a(20) =172a(21) =175a(22) =184a(23) =193a(24) =207a(25) =211a(26) =225a(27) =232a(28) =252a(29) =253