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

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

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

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

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