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

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

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

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

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