プログレッシブ和英中辞典(第4版)の解説
すうれつ【数列】
❶〔数学で〕a progression; a sequence (of numbers)
等差数列
(an) arithmetical progression [sequence]
等比数列
(a) geometric progression [sequence]
有限［無限］数列
「a finite [an infinite] sequence of numbers
❷〔いくつかの列〕
選手団は数列になって行進した
The team of athletes marched in several lines.
数列のいすが並んでいた
Chairs were arranged in several rows.／There were several rows of chairs.（▼lineは縦列，rowは横列）