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

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

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

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

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