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

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

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

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

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