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

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

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

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

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