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The average value is not always the same as the central term.
Table of n, a(n) for n=1..46.
Sequence in context: A142105 A031383 A248697 * A154409 A033213 A082078
Adjacent sequences: A180453 A180454 A180455 * A180457 A180458 A180459
Carmine Suriano, Sep 06 2010