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