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

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

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

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

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