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