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

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

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

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

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