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

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

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

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

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