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

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

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

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

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