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