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

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

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

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

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