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

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

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

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

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