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