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