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

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

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

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

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