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