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

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

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

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

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