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

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

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

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

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