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