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