卡塔兰数通常表示为 (Graham et al. 1994; Stanley 1999b, p. 219; Pemmaraju 和 Skiena 2003, p. 169; 本文) 或 (Goulden 和 Jackson 1983, p. 111),较少见的表示为 (van Lint 和 Wilson 1992, p. 136)。
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