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

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

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

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

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