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

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

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

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

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