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