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