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