a(n) = (1/5)*Product_{k=0..n} F(k)+5, where F=A000045 (Fibonacci numbers).
A374986
a(n) = (1/5)*Product_{k=0..n} F(k)+5, where F=A000045 (Fibonacci numbers).
Terms
- a(0) =1a(1) =6a(2) =36a(3) =252a(4) =2016a(5) =20160a(6) =262080a(7) =4717440a(8) =122653440a(9) =4783484160a(10) =287009049600
External references
- oeis: A374986