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