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

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

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

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

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