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