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

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

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

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

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