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

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

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

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

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