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

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

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

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

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