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