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

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

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

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

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