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

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

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

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

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