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