An arithmetic sequence is an ordered list of numbers where the next number is found by adding the same amount to the number before. (2,5,8,11... is one where you add 3 to get the next number) The equation for arithmetic sequence is [tex] A_{n} = A_{1} +(n-1)d[/tex] where [tex]A_{n}[/tex] is the "n th" number in the sequence ([tex]A_{1}[/tex] is the first number in the sequence) d is the number you add to get the next number
