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