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