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