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