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