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