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

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

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

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

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