The number of $n$-ary bent functions is less than $2^{3\cdot2^{n-3}(1+o(1))}$ as $n$ is even and $n\rightarrow\infty$. Keywords: Boolean function, bent function, upper bound

翻译：$n$ 的弯曲函数数小于 $3\ cdott2\\\\\ n3}( 1+o(1))}$2\\ 3\ cdott2\\\\\ n3}n-3}(1+o(1))}}$n美元是偶数,$n\rightrow\ infty$。关键词: 布尔函数、 弯曲函数、 弯曲函数、 上括号