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