“Euler numbers”的概念、定义、翻译、参考文献-科学参考

单词	Euler numbers
释义	Euler numbers Mathematics An integer sequence E_n, related to the Bernoulli numbers, and defined by the generating function $\frac{1}{cosh x} = \sum_{n = 0}^{\infty} \frac{E_{n} x^{n}}{n!} .$ As coshx is an even function, all odd Euler numbers are zero. The first few even Euler numbers are E₀ = 1, E₂ = −1, E₄ = 5, E₆ = −61, E₈ = 1385.
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