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