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