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