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