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

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

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

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

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