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