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

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

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

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

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