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