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