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