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