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

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

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

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

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