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