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