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

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

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

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

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