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

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

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

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

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