Real Sequence/Examples/(1 + (-1)^n) / 2

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Examples of Real Sequence

The real sequence whose first few terms are:

$1, 0, 1, 0, \dotsc$

can be defined by the formula:

$S = \sequence {\dfrac {1 + \paren {-1}^n} 2}_{n \mathop \ge 0}$


Sources