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