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

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

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

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

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