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

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

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

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

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