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

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

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

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

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