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