How do I type the symbols in for this formula into maxima (it's the zeta function)? I'm looking for the proper symbols/keys/text sequence. Example in latex to get the zeta symbol you type in \zeta but what sequence of letters and symbols does one type in to get the formula below.

Simply zeta(s). "If [s] is a negative integer, 0, or a positive even integer, the Riemann zeta function simplifies to an exact value. For a positive even integer the option variable zeta%pi has to be true in addition (See zeta%pi)". See http://maxima.sourceforge.net/docs/manual/en/maxima_29.html.