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