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