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