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