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