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

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

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

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

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