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

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

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

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

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