What comes next?

2 ⤊

For n = 1, 2, 3, 4, etc, a mathematical formula F(n) generates 1, 1, 1, 120,...etc. What's F(5)?

2006-11-20 20:18:08 · 2 answers · asked by Scythian1950 7 in Science & Mathematics ➔ Mathematics

How about 25852016738884976640000?
(n-1)!!/(n-1)!

2006-11-20 20:24:30 · answer #1 · answered by stephen m 4 · 2⤊ 0⤋

f(n) = 119nÂ³/6 - 119nÂ² + 1309n/6 - 118
f(1) = 1
f(2) = 1
f(3) = 1
f(4) = 120
f(5) = 477

2006-11-21 05:03:04 · answer #2 · answered by Wal C 6 · 0⤊ 0⤋