a(n) = ceiling(n*phi^14), where phi is the golden ratio, A001622.

Terms

a(0) =0a(1) =843a(2) =1686a(3) =2529a(4) =3372a(5) =4215a(6) =5058a(7) =5901a(8) =6744a(9) =7587a(10) =8430a(11) =9273a(12) =10116a(13) =10959a(14) =11802a(15) =12645a(16) =13488a(17) =14331a(18) =15174a(19) =16017a(20) =16860a(21) =17703a(22) =18546a(23) =19389a(24) =20232a(25) =21075a(26) =21918a(27) =22761a(28) =23604a(29) =24447