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