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