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