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