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