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

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

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

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

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