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