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