Numbers of the form 2*p^e, with p an odd prime and e >= 2.

Terms

a(0) =18a(1) =50a(2) =54a(3) =98a(4) =162a(5) =242a(6) =250a(7) =338a(8) =486a(9) =578a(10) =686a(11) =722a(12) =1058a(13) =1250a(14) =1458a(15) =1682a(16) =1922a(17) =2662a(18) =2738a(19) =3362a(20) =3698a(21) =4374a(22) =4394a(23) =4418a(24) =4802a(25) =5618a(26) =6250a(27) =6962a(28) =7442a(29) =8978