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