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

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

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

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

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