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

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

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

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

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