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

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

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

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

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