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

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

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

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

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