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