Zig Number

An odd alternating permutation number, more commonly called an Euler number or secant number.

See also

Alternating Permutation, Euler Number, Zag Number

Explore with Wolfram|Alpha

More things to try:

Cite this as:

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

Subject classifications