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

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

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

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

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