Schröder number
短语词形变化
Schröder numbers
复数
Schröder numbers
释义与例句
n.
-
1.
The number of possible lattice paths from the southwest corner (0, 0) of an n × n grid to the northeast corner (n, n), using only single steps north, northeast or east, and not rising above the southwest–northeast diagonal.
数学
词源
Named after the German mathematician Ernst Schröder.
来源:wiktionary