a(n) = Fibonacci(n)*(2*Fibonacci(n)-1).

Terms

a(0) =0a(1) =1a(2) =1a(3) =6a(4) =15a(5) =45a(6) =120a(7) =325a(8) =861a(9) =2278a(10) =5995a(11) =15753a(12) =41328a(13) =108345a(14) =283881a(15) =743590a(16) =1947351a(17) =5099221a(18) =13351528a(19) =34957341a(20) =91523685a(21) =239618886a(22) =627341331a(23) =1642418641a(24) =4299936480a(25) =11257426225a(26) =29472399505a(27) =77159865030a(28) =202007345631a(29) =528862414653