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

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

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

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

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