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