最終更新日：2025/12/04
The Schröder number for n = 4 counts the distinct lattice paths from the southwest corner (0,0) to the northeast corner (4,4) that use only single steps north, northeast, or east and never rise above the southwest–northeast diagonal.
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The Schröder number for n = 4 counts the distinct lattice paths from the southwest corner (0,0) to the northeast corner (4,4) that use only single steps north, northeast, or east and never rise above the southwest–northeast diagonal.
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元となった例文
n = 4 のシュレーダー数とは、(0,0) の南西隅から (4,4) の北東隅まで、北・北東・東の一歩だけを使い、南西–北東の対角線を越えないような異なる格子路の数を指します。
