(0 21 17 15 12)(1 6 4)(2 19 3)(5 9 7)(8 13 10 14 11)(16 20 18)
ALLOWS (11/8)-SEQUENCE
1: (0 9 12)
(0)(1 6 4)(2 19 3)(5 9 21 17 15 12 7)(8 13 10 14 11)(16 20 18)
2: (8 13 10)
(0)(1 6 4)(2 19 3)(5 9 21 17 15 12 7)(8 14 11)(10)(13)(16 20 18)
3: (7 21 12)
(0)(1 6 4)(2 19 3)(5 9 21)(7)(8 14 11)(10)(12 17 15)(13)(16 20 18)
4: (8 14 11)
(0)(1 6 4)(2 19 3)(5 9 21)(7)(8)(10)(11)(12 17 15)(13)(14)(16 20 18)