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