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

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

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

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

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