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