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