a(n) = (F(6*n+3) - 2)/32, where F = A000045 (the Fibonacci sequence).

A049664

a(n) = (F(6*n+3) - 2)/32, where F = A000045 (the Fibonacci sequence).

Terms

    a(0) =0a(1) =1a(2) =19a(3) =342a(4) =6138a(5) =110143a(6) =1976437a(7) =35465724a(8) =636406596a(9) =11419853005a(10) =204920947495

External references