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

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

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

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

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