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

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

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

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

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