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

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

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

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

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