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