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

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

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

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

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