2013年4月gre數(shù)學(xué)考試之Sequence of Numbers

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    Sequence of Numbers
    A sequence is a set of numbers that follow a fixed pattern.The fixed pattern can be expressed by an equation or by a property.
    Example:
    A set of consecutive integers: 1,2,3,4,5(Fixed gap)
    A set of consecutive even numbers:4,6,8,10,12 (Fixed gap)
    A set of consecutive prime: 2,3,5,7,11(Fixed gap)
    A set of consecutive power of 2:4,8,16,32,64(Fixed gap)
    Remember:
    A sequence can be in ascending or desceding order.