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

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

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

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

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