Sum of two powers of 13.

Terms

a(0) =2a(1) =14a(2) =26a(3) =170a(4) =182a(5) =338a(6) =2198a(7) =2210a(8) =2366a(9) =4394a(10) =28562a(11) =28574a(12) =28730a(13) =30758a(14) =57122a(15) =371294a(16) =371306a(17) =371462a(18) =373490a(19) =399854a(20) =742586a(21) =4826810a(22) =4826822a(23) =4826978a(24) =4829006a(25) =4855370a(26) =5198102a(27) =9653618a(28) =62748518a(29) =62748530