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

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

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

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

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