制限付き占有問題の簡単な計数公式
Counting Formulae for the Number of Permutations with Constraints

LEI Li, TOSHIAKI TOMODA, SHOICHI MIDORIKAWA, TAKATOSHI HORIBATA
1997 Nihon Oyo Suri Gakkai ronbunshi  
doi:10.11540/jsiamt.7.4_321 fatcat:itwdg6hkdbgbjmm7iavpq6pmba