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

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

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

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

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