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