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

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

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

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

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