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