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