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