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