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

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

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

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

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