[net.puzzle] Deriv of x!

ran@ho95b.UUCP (RANeinast) (04/10/85)

>> 
>> 	What is the next number in the series
>> 		2, 3, 5, 7, ...
>> 
>	I sure hope that the next number is 11. Primes, right?
>(Boy will I feel dumb if this isn't the right answer.)

I thought the next number was 8.  The series is "obviously"
the value of (12+x+6*x^2-x^3)/6 for x=0,1,2,3.  Now just plug
in x=4.
-- 

". . . and shun the frumious Bandersnatch."
Robert Neinast (ihnp4!ho95b!ran)
AT&T-Bell Labs