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