Numbers of the form (4^i)*(13^j), with i, j >= 0.

Terms

a(0) =1a(1) =4a(2) =13a(3) =16a(4) =52a(5) =64a(6) =169a(7) =208a(8) =256a(9) =676a(10) =832a(11) =1024a(12) =2197a(13) =2704a(14) =3328a(15) =4096a(16) =8788a(17) =10816a(18) =13312a(19) =16384a(20) =28561a(21) =35152a(22) =43264a(23) =53248a(24) =65536a(25) =114244a(26) =140608a(27) =173056a(28) =212992a(29) =262144