See also the Dr. Math FAQ: Browse High School Sequences, Series
Stars indicate particularly interesting answers or good places
to begin browsing. Selected answers to common questions:
Strategies for finding sequences. - Adding Arithmetic Sequences
[07/10/1998] How do you add the numbers from 1 to 5000 without
actually doing it or using a calculator? What if you were adding
just the odd numbers? - Calculating the Fibonacci Sequence
[11/28/1996] Is there a formula to calculate the nth Fibonacci
number? - Decimal To Fraction Conversion [06/25/1998] I am
trying to find a method (one that can be programmed on a PC) to
convert the decimal part of a real number to a fraction
represented by integers for the numerator and denominator. -
Describing Patterns in Sequences [04/16/2002] My students are
able to identify the number patterns corresponding to number
sequences, but are having difficulty explaining them in -
Doubling Grains of Wheat [10/7/1996] A man asked for 1 grain of
wheat for the 1st square on a chess board