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