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