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

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

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

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

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