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

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

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

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

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