a(n) = floor(x*a(n-1)) for n > 0 where x = 3+sqrt(15), a(0) = 1.

A370176

a(n) = floor(x*a(n-1)) for n > 0 where x = 3+sqrt(15), a(0) = 1.

Terms

    a(0) =1a(1) =6a(2) =41a(3) =281a(4) =1931a(5) =13271a(6) =91211a(7) =626891a(8) =4308611a(9) =29613011a(10) =203529731a(11) =1398856451a(12) =9614317091a(13) =66079041251a(14) =454160150051

External references