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

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

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

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

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