Power floor sequence of 2+sqrt(6).

Terms

a(0) =4a(1) =17a(2) =75a(3) =333a(4) =1481a(5) =6589a(6) =29317a(7) =130445a(8) =580413a(9) =2582541a(10) =11490989a(11) =51129037a(12) =227498125a(13) =1012250573a(14) =4503998541a(15) =20040495309a(16) =89169978317a(17) =396760903885