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

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

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

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

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