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

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

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

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

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