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

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

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

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

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