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