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

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

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

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

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