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