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