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