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