Results 1 to 2 of 2

Thread: Sequences

  1. January 23rd 2009, 03:04 AM #1
    Berwick
    Berwick is offline
    Newbie
    Joined
    Jan 2009
    Posts
    4

    Sequences

    Hi Guys, I desperately need to know if there is a simple formula for the following set of numbers.
    3
    7
    12
    18
    25
    33
    42 etc

    You can see that the number by which it increses is 1 extra each time but I need to know how to but this into a formula.

    Thanks,

    Mark
    Follow Math Help Forum on Facebook and Google+
  2. January 23rd 2009, 03:36 AM #2
    Plato
    Plato is offline
    MHF Contributor
    Joined
    Aug 2006
    Posts
    16,972
    Thanks
    767
    Awards
    1
    MHF Donor
    Quote Originally Posted by Berwick View Post
    Hi Guys, I desperately need to know if there is a simple formula for the following set of numbers.
    3
    7
    12
    18
    25
    33
    42 etc
    \frac{n(n+5)}{2}
    Follow Math Help Forum on Facebook and Google+
« [SOLVED] Help with annuity question | [SOLVED] Absolute distance »

Similar Math Help Forum Discussions

  1. Convergence in sequences of sequences
    Posted in the Differential Geometry Forum
    Replies: 4
    Last Post: October 19th 2010, 07:28 AM
  2. Sequences and the sequences' arithmetics
    Posted in the Differential Geometry Forum
    Replies: 1
    Last Post: October 6th 2010, 09:31 PM
  3. Monotone sequences and Cauchy sequences
    Posted in the Differential Geometry Forum
    Replies: 3
    Last Post: March 21st 2009, 08:59 PM
  4. Sequences Q3
    Posted in the Calculus Forum
    Replies: 1
    Last Post: March 9th 2009, 05:08 AM
  5. The formulas for Algebraic Sequences and Geometric Sequences
    Posted in the Algebra Forum
    Replies: 5
    Last Post: January 16th 2008, 04:51 PM

Search Tags


/mathhelpforum @mathhelpforum