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