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