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