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