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

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

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

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

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