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