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

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

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

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

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