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