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

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

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

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

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