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

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

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

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

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