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

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

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

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

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