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

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

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

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

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