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

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

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

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

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