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