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

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

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

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

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