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

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

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

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

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