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