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