Power ceiling sequence of 2+sqrt(6).

Terms

a(0) =5a(1) =23a(2) =103a(3) =459a(4) =2043a(5) =9091a(6) =40451a(7) =179987a(8) =800851a(9) =3563379a(10) =15855219a(11) =70547635a(12) =313900979a(13) =1396699187a(14) =6214598707a(15) =27651793203a(16) =123036370227a(17) =547449067315