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