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

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

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

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

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