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