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