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

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

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

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

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