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