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

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

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

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

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