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