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