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

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

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

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

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