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