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