Greatest k such that floor(k/r^n)=n, where r = golden mean = (1+sqrt(5))/2.

Terms

a(0) =3a(1) =7a(2) =16a(3) =34a(4) =66a(5) =125a(6) =232a(7) =422a(8) =760a(9) =1352a(10) =2388a(11) =4185a(12) =7294a(13) =12644a(14) =21824a(15) =37518a(16) =64278a(17) =109781a(18) =186980a(19) =317666a(20) =538472a(21) =910868a(22) =1537896a(23) =2592049a(24) =4361786a(25) =7328960a(26) =12297712a(27) =20608762a(28) =34495530a(29) =57675437