Generating involutions, derangements, and relatives by ECO
Generating involutions, derangements, and relatives by ECO
Combinatorics We show how the ECO method can be applied to exhaustively generate some classes of permutations. A previous work initiating this technique and motivating our research was published in Ac ta Informatica, 2004, by S. Bacchelli, E. Barcucci, E. Grazzini and E. Pergola.