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