Zag Number

A zag number is an even alternating permutation number, more commonly called a tangent number.

See also

Alternating Permutation, Tangent Number, Zig Number

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Cite this as:

Weisstein, Eric W. "Zag Number." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/ZagNumber.html

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