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

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

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

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

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