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

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

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

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

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