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

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

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

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

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