a(n) = round(n*phi^13), where phi is the golden ratio, A001622.

Terms

a(0) =0a(1) =521a(2) =1042a(3) =1563a(4) =2084a(5) =2605a(6) =3126a(7) =3647a(8) =4168a(9) =4689a(10) =5210a(11) =5731a(12) =6252a(13) =6773a(14) =7294a(15) =7815a(16) =8336a(17) =8857a(18) =9378a(19) =9899a(20) =10420a(21) =10941a(22) =11462a(23) =11983a(24) =12504a(25) =13025a(26) =13546a(27) =14067a(28) =14588a(29) =15109