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