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