{ "id": "1706.07148", "version": "v1", "published": "2017-06-22T02:12:52.000Z", "updated": "2017-06-22T02:12:52.000Z", "title": "On the Enumeration and Congruences for m-ary Partitions", "authors": [ "Lisa Hui Sun", "Mingzhi Zhang" ], "categories": [ "math.CO" ], "abstract": "Let $m\\ge 2$ be a fixed positive integer. Suppose that $m^j \\leq n< m^{j+1}$ is a positive integer for some $j\\ge 0$. Denote $b_{m}(n)$ the number of $m$-ary partitions of $n$, where each part of the partition is a power of $m$. In this paper, we show that $b_m(n)$ can be represented as a $j$-fold summation by constructing a one-to-one correspondence between the $m$-ary partitions and a special class of integer sequences rely only on the base $m$ representation of $n$. It directly reduces to Andrews, Fraenkel and Sellers' characterization of the values $b_{m}(mn)$ modulo $m$. Moreover, denote $c_{m}(n)$ the number of $m$-ary partitions of $n$ without gaps, wherein if $m^i$ is the largest part, then $m^k$ for each $0\\leq k