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

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

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

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

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