(0 20 3)(1 7 4)(2 13 11 9 5)(6 15 14 10 8)(12 18 17)(16 21 19)
ALLOWS (11/8)-SEQUENCE
1: (0 1 3)
(0)(1 20 3 7 4)(2 13 11 9 5)(6 15 14 10 8)(12 18 17)(16 21 19)
2: (3 7 20)
(0)(1 20 4)(2 13 11 9 5)(3)(6 15 14 10 8)(7)(12 18 17)(16 21 19)
3: (2 13 5)
(0)(1 20 4)(2)(3)(5 11 9)(6 15 14 10 8)(7)(12 18 17)(13)(16 21 19)
4: (6 15 8)
(0)(1 20 4)(2)(3)(5 11 9)(6)(7)(8 14 10)(12 18 17)(13)(15)(16 21 19)