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