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

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

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

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

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