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

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

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

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

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