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

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

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

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

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