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

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

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

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

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