quote:
Originally posted by inc_haydn
It's actually (n-1)-(n-2)=6
that formula doesn't work either, remember it's a sequence, not a normal algebratic expression, so n doesn't equal any random number, n equals the nth number. so...
0, 1 , 2 , 3 , 4 , 5 , 6
3, 12, 27, 48, 75, __, __.
for 3, n=0, for 75, n=4 and so on.
I can't solve it right now, cause i've got school, but have fun