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

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

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

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

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