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

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

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

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

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