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

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

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

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

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