Numbers of the form 5^j + 9^k, for j and k >= 0.

Terms

a(0) =2a(1) =6a(2) =10a(3) =14a(4) =26a(5) =34a(6) =82a(7) =86a(8) =106a(9) =126a(10) =134a(11) =206a(12) =626a(13) =634a(14) =706a(15) =730a(16) =734a(17) =754a(18) =854a(19) =1354a(20) =3126a(21) =3134a(22) =3206a(23) =3854a(24) =6562a(25) =6566a(26) =6586a(27) =6686a(28) =7186a(29) =9686