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

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

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

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

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