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