(0 18 16)(1 13 6 5 3)(2 19 9 7 4)(8 12 10)(11 17 15)(14 21 20)
ALLOWS (11/8)-SEQUENCE
1: (0 3 16)
(0)(1 13 6 5 3 18 16)(2 19 9 7 4)(8 12 10)(11 17 15)(14 21 20)
2: (2 19 9)
(0)(1 13 6 5 3 18 16)(2 7 4)(8 12 10)(9)(11 17 15)(14 21 20)(19)
3: (6 18 13)
(0)(1 13 16)(2 7 4)(3 18 5)(6)(8 12 10)(9)(11 17 15)(14 21 20)(19)
4: (11 17 15)
(0)(1 13 16)(2 7 4)(3 18 5)(6)(8 12 10)(9)(11)(14 21 20)(15)(17)(19)