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

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

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

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

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