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

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

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

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

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