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