2083692domain: NAppears in sequencesFrom the enumeration of corners.at n=18A006332Number of reduced words of length n in Coxeter group on 39 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.at n=4A162871Numbers k such that the square part of k is one greater than the squarefree part of k.at n=13A189883