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

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

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

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

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