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