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

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

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

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

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