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