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

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

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

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

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