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

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

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

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

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