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