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