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

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

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

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

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