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

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

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

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

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