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Topic: What is the next number in this series?
Replies: 33   Last Post: Feb 20, 2012 12:54 AM

 Messages: [ Previous | Next ]
 G. A. Edgar Posts: 2,510 Registered: 12/8/04
Re: What is the next number in this series?
Posted: Feb 10, 2012 9:26 AM

In article
Slick itler <toseriously@gmail.com> wrote:

> 1,2,8, ...

Try the Encyclopedia of Integer Sequences.
https://oeis.org/
It found many answers to your question: a sequence of interest for some
reason that begins 1,2,8. In fact, there are 2,210 matches. The
first one that comes up: A000165, the "double factorial (2n)!!", where
0!! = 1, 2!! = 2, 4!!=8. If THAT is your sequence, then the next one is
6!!=48

--
G. A. Edgar http://www.math.ohio-state.edu/~edgar/

Date Subject Author
2/8/12 Slick itler
2/8/12 quasi
2/9/12 donstockbauer@hotmail.com
2/9/12 Bill Taylor
2/9/12 Tim Little
2/9/12 Jussi Piitulainen
2/9/12 noname
2/9/12 David R Tribble
2/10/12 Helmut Richter
2/9/12 Jim Burns
2/9/12 Jim Burns
2/9/12 quasi
2/9/12 Michael Stemper
2/11/12 Bill Taylor
2/11/12 quasi
2/14/12 Bill Taylor
2/19/12 Risto Kauppila
2/19/12 Risto Kauppila
2/9/12 Jose Carlos Santos
2/9/12 David C. Ullrich
2/9/12 AP
2/9/12 Butch Malahide
2/9/12 quasi
2/9/12 Jussi Piitulainen
2/9/12 AP
2/9/12 J. Antonio Perez M.
2/9/12 Dan Christensen
2/9/12 Usher73
2/10/12 noname
2/9/12 K_h
2/10/12 noname
2/10/12 G. A. Edgar
2/11/12 Pfsszxt@aol.com