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

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

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

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

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